Question 1

Is it an emergency (no heat in winter, gas smell)?

Accepted Answer

If you smell gas, leave the house and call your gas company first. No-heat situations in freezing weather qualify for emergency service — tell the dispatcher so they can prioritize. Emergency HVAC calls typically cost more than scheduled visits.

Question 2

What type of system do you have?

Accepted Answer

Central air, heat pump, mini-split, furnace, boiler — the tech needs to know before arriving. If you're not sure, check the unit label or send a photo of the indoor and outdoor units.

Question 3

When was the system last serviced?

Accepted Answer

Annual maintenance is standard. If your system hasn't been serviced in years, mention it — the tech may need to do a full tune-up before diagnosing a specific issue.

Question 4

What exactly is happening — or not happening?

Accepted Answer

Is it blowing warm when it should be cold? Making a noise? Short-cycling? Not turning on at all? Specific symptoms narrow the diagnosis and let the tech bring the right parts.

Question 5

Have you checked the thermostat and filter?

Accepted Answer

A dead thermostat battery or a clogged filter causes most 'system not working' calls. Check both before scheduling — you may save yourself a service fee.

Question 6

How much does HVAC repair cost in Palma?

Accepted Answer

HVAC repair rates in Palma, IB depend on the issue. Compare local HVAC technicians on HireLocal, see reviews, and get free quotes.

Question 7

How do I find a reliable HVAC tech in IB?

Accepted Answer

HireLocal lists local HVAC pro. Browse technicians in Palma, IB with real ratings and reviews, and get free quotes.

Question 8

How often should I service my HVAC system in Palma?

Accepted Answer

HVAC experts recommend professional maintenance at least once a year — ideally in spring for AC and fall for heating. Regular tune-ups catch problems early and keep your system running efficiently. Find local HVAC technicians in Palma, IB on HireLocal.

Question 9

Wat is een HVAC?

Accepted Answer

Heating, ventilation, and air conditioning. HVAC technicians install, maintain, and repair systems that control temperature and air quality in homes and buildings. EPA certification is required in the U.S. for work involving refrigerants.

Question 10

Wat is een EPA certification?

Accepted Answer

U.S. Environmental Protection Agency certification required for technicians who handle refrigerants (e.g. in HVAC and refrigeration). The EPA 608 credential ensures proper handling to protect the ozone layer and comply with federal law.

Question 11

Wat is een HVAC technician?

Accepted Answer

A professional who installs, maintains, and repairs heating, ventilation, and air conditioning systems. Training typically includes technical school or apprenticeship; EPA certification is required for refrigerant work in the U.S.

Question 12

Wat is een Duct cleaning?

Accepted Answer

Professional cleaning of HVAC ductwork to remove dust, debris, mold, and allergens that accumulate over time. The EPA recommends duct cleaning when there is visible mold growth, vermin infestation, or ducts are clogged with excessive dust. Reputable companies use negative-pressure vacuums and agitation tools.

Question 13

Wat is een Smart thermostat?

Accepted Answer

A Wi-Fi-connected programmable thermostat that learns occupancy patterns, adjusts temperature automatically, and can be controlled remotely via a smartphone app. Popular models include Nest, Ecobee, and Honeywell Home. Smart thermostats can reduce heating and cooling costs by 10–15% by optimizing run times and avoiding heating or cooling an empty home. Installation requires a C-wire (common wire) for power; older homes without a C-wire may need an adapter or a short run of new wire. Professional installation costs $75–$200 on top of the device ($100–$250). An HVAC technician or electrician can install one, verify compatibility with your system, and ensure the wiring is correct.

Question 14

Wat is een Load calculation (Manual J)?

Accepted Answer

A room-by-room engineering calculation (ACCA Manual J) that determines exactly how many BTUs of heating and cooling a home needs. It accounts for square footage, insulation R-values, window area and orientation, air infiltration, climate zone, occupancy, and internal heat gains from appliances and lighting. The result tells an HVAC contractor what size furnace, AC, or heat pump to install — too large wastes energy and short-cycles (wears out faster), while too small can't keep up on extreme days. A proper Manual J is required by building code in most jurisdictions for new installs or replacements and typically costs $100–$300 as a standalone service. Many reputable HVAC companies include it free when you hire them for the installation. Beware of contractors who size equipment by "rules of thumb" (e.g., 1 ton per 500 sq ft) — these ignore critical variables and frequently result in oversized, inefficient systems.

Question 15

Wat is een Condensate drain?

Accepted Answer

A drain line (typically 3/4" PVC) that carries water produced by an air conditioner or high-efficiency furnace away from the unit. During cooling, an AC evaporator coil removes 5–20 gallons of moisture from the air per day, which collects in a drain pan beneath the coil and flows through the condensate line to a floor drain, utility sink, or exterior discharge point. A clogged condensate drain is one of the most common AC service calls — algae, slime, and debris build up inside the line, causing water to back up into the drain pan, overflow onto the ceiling or floor, and potentially trigger an automatic safety switch that shuts down the system. Maintenance is straightforward: flush the line with distilled vinegar or a 50/50 bleach solution every 3–6 months. Some systems include a condensate pump (required when gravity drainage isn't possible) that lifts the water to a drain point — pumps have a float switch and should be tested annually. Cost to clear a clogged condensate line: $75–$250 service call. A condensate pump replacement runs $200–$400.

Question 16

Wat is een Mini-split heat pump?

Accepted Answer

A mini-split heat pump is a ductless heating and cooling system consisting of an outdoor compressor/condenser unit connected by refrigerant lines to one or more indoor air-handling units (called heads or cassettes). Unlike central HVAC systems that push conditioned air through ductwork, a mini-split delivers heating or cooling directly into the room where each indoor unit is mounted, eliminating the 20 to 30 percent energy loss that typically occurs in duct systems. In cooling mode the system works like a standard air conditioner, absorbing indoor heat and rejecting it outdoors; in heating mode it reverses the refrigerant cycle to extract heat from outdoor air and move it inside — modern cold-climate models can heat effectively down to -15 degrees Fahrenheit. A single outdoor unit can serve one indoor head (single-zone) or up to five indoor heads (multi-zone), allowing independent temperature control in each room. Mini-splits are ideal for room additions, converted garages, older homes without ductwork, and supplemental heating/cooling in problem rooms. Efficiency ratings range from 18 to 42 SEER2 for cooling and 9 to 14 HSPF2 for heating, far exceeding conventional systems. Equipment costs range from $1,500 to $3,500 for a single-zone system and $4,000 to $12,000 for multi-zone setups. Professional installation adds $1,000 to $3,000 per zone, covering mounting brackets, refrigerant line sets (typically 15 to 50 feet), electrical connections, and a condensate drain line. The indoor unit mounts high on a wall, ceiling, or floor and connects to the outdoor unit through a small 3-inch hole in the exterior wall, making installation far less invasive than installing new ductwork. Annual maintenance includes cleaning filters monthly, having a technician clean the coils and check refrigerant charge once a year ($100 to $200), and clearing the condensate drain. Common issues include frozen coils from low refrigerant or dirty filters, error codes from communication faults between indoor and outdoor units, and reduced heating capacity in extreme cold if the unit is undersized. A licensed HVAC technician should perform installation and annual service.

Question 17

Wat is een Thermal expansion valve (TXV)?

Accepted Answer

A thermal expansion valve (TXV or TEV) is a precision metering device in an air conditioning or heat pump system that controls the flow of liquid refrigerant into the evaporator coil. It is one of the four essential components of the refrigeration cycle, along with the compressor, condenser, and evaporator. The TXV works by sensing the temperature of the refrigerant gas leaving the evaporator through a sensing bulb clamped to the suction line. When the evaporator is warm (indicating it needs more cooling capacity), the valve opens wider to allow more refrigerant in; when the evaporator is sufficiently cold, the valve narrows to prevent liquid refrigerant from flooding back to the compressor (which would cause compressor damage called slugging). This dynamic metering maintains optimal superheat — typically 8–12°F above the refrigerant's boiling point at operating pressure. Compared to simpler fixed-orifice metering devices (piston or capillary tube), a TXV adjusts continuously to changing conditions like fluctuating outdoor temperatures and varying indoor heat loads, improving efficiency by 10–15% and extending compressor life. TXV failure symptoms include poor cooling despite the compressor running, frost on the evaporator coil, high suction pressure, and wide temperature swings. Replacement costs $200–$500 for the part plus $200–$400 for labor, as the system must be recovered, the valve swapped, and the system evacuated and recharged with refrigerant.

Question 18

Wat is een Condensate pump?

Accepted Answer

A condensate pump is a small electric pump used to remove condensation (water) produced by HVAC equipment — most commonly high-efficiency furnaces, air conditioners, and dehumidifiers — when gravity drainage isn't possible. The condensate collects in a small reservoir; when the water level reaches a float switch, the pump activates and pushes the water through a small-diameter tube to a drain, utility sink, or exterior discharge point. Condensate pumps are essential in basements and interior closets where equipment sits below or far from a floor drain. If the pump fails, water overflows the reservoir and can damage flooring, drywall, and equipment. Most pumps include a safety float switch that shuts down the HVAC system if the reservoir is full, preventing overflow. Replacement pumps cost $50–$150; professional installation runs $150–$300. Homeowners should check the pump reservoir and clean the inlet tube every 3–6 months to prevent algae buildup and clogs.

Question 19

Wat is een Duct sealing?

Accepted Answer

Duct sealing is the process of finding and closing leaks, gaps, and poor connections in a home's HVAC ductwork to improve energy efficiency, comfort, and indoor air quality. Studies by the U.S. Department of Energy estimate that the average home loses 20–30% of conditioned air through duct leaks, making it one of the biggest energy wastes in residential HVAC. Sealing methods include mastic sealant (a thick paste), metal-backed tape (UL-181), and aerosol-based sealing (Aeroseal), where a pressurized sealant is blown into the duct system and automatically fills leaks from the inside. Professional duct sealing typically costs $1,500–$4,000 depending on system size and method. After sealing, homeowners often notice more even room temperatures, lower energy bills (10–20% savings), reduced dust, and less strain on HVAC equipment. Duct sealing should be done before adding insulation to ducts for maximum benefit. Note: standard cloth 'duct tape' should never be used on ductwork — it dries out and fails within months.

Question 20

Wat is een HVAC zoning?

Accepted Answer

HVAC zoning divides a home into independent temperature zones, each controlled by its own thermostat and motorized dampers in the ductwork. Instead of heating or cooling the entire house to one temperature, zoning lets you set different temperatures for different areas — for example, keeping bedrooms cooler at night while the living room stays comfortable. A basic two-zone system costs $2,000–$3,500 installed; multi-zone systems with smart thermostats can run $3,500–$7,000+. Zoning reduces energy waste by 20–35% in homes with multi-story layouts, large open plans, rooms over garages, or areas with significant sun exposure. The system consists of a zone control panel (the brain), motorized dampers (one per zone in the ductwork), and individual thermostats. Ductless mini-splits are an alternative that provides zoning without ductwork modifications.

Question 21

Wat is een Condensing unit (outdoor AC unit)?

Accepted Answer

The condensing unit is the large box that sits outside your home as part of a split-system air conditioner or heat pump. It contains the compressor (the "heart" that circulates refrigerant), the condenser coil (a large radiator-like surface that releases heat absorbed from inside the home), and a fan that pulls outdoor air across the coil. Refrigerant arrives from the indoor evaporator coil as a hot, high-pressure gas, and the condenser cools it back into a liquid so the cycle repeats. The unit requires at least 24 inches of clearance on all sides for proper airflow. Common maintenance includes annual coil cleaning ($100–$200), clearing debris from around the unit, and checking refrigerant levels. Condensing units last 15–20 years. Replacement costs range from $2,500–$5,000 for the unit alone, or $4,000–$10,000 installed with refrigerant lines and electrical connections by a licensed HVAC technician.

Question 22

Wat is een BTU (British Thermal Unit)?

Accepted Answer

A unit of heat energy equal to the amount needed to raise one pound of water by one degree Fahrenheit. In HVAC, BTU ratings describe heating and cooling capacity. A typical window AC unit produces 5,000–12,000 BTU/hr; a residential furnace outputs 40,000–120,000 BTU/hr; a residential water heater delivers 30,000–75,000 BTU/hr. Rule of thumb for cooling: you need roughly 20 BTU per square foot of living space, adjusted for ceiling height, insulation quality, sun exposure, and climate zone. Oversizing (too many BTU) causes short-cycling; undersizing means the system runs nonstop without reaching the set temperature.

Question 23

Wat is een Heat pump?

Accepted Answer

A climate-control system that transfers heat rather than generating it by burning fuel. In summer it moves heat from indoors to outdoors (like a regular AC); in winter it reverses the cycle, extracting heat from outdoor air (even in cold temperatures) and pumping it inside. Air-source heat pumps are the most common residential type; ground-source (geothermal) models pull heat from underground loops. Modern cold-climate heat pumps work efficiently down to -15°F (-26°C). Because they move heat instead of creating it, heat pumps use 2–3× less electricity than electric resistance heating. They're becoming the default replacement for aging furnace + AC combos, especially where electricity is cheaper than gas.

Question 24

Wat is een Damper?

Accepted Answer

A movable plate or valve inside a duct, chimney, or flue that controls airflow. In HVAC, duct dampers regulate how much heated or cooled air reaches each zone of the house — closing a damper reduces airflow to that room, redirecting it elsewhere. In a fireplace, the throat damper (just above the firebox) opens to let smoke up the chimney during a fire and closes to prevent heat loss when the fireplace is idle. A top-sealing damper sits at the chimney crown and is operated by a cable from the firebox — it provides a better seal than a throat damper and also keeps rain, animals, and debris out. Stuck or broken dampers cause common problems: a stuck-closed HVAC damper leaves a room too hot or cold; a stuck-open fireplace damper wastes conditioned air 24/7. Replacement costs: HVAC duct damper $100–$300 installed; fireplace damper $200–$600.

Question 25

Wat is een Condensate drain line?

Accepted Answer

A PVC pipe (typically 3/4-inch) that carries moisture removed from indoor air by an air conditioner or high-efficiency furnace to a floor drain, exterior discharge point, or condensate pump. During peak cooling season, a central AC can produce 5–20 gallons of condensate per day. A clogged condensate drain is the #1 cause of AC water leaks indoors — algae, mold, and dust accumulate in the line over time, creating a blockage that causes the drain pan to overflow. Most HVAC technicians recommend flushing the line with diluted bleach (1 cup per gallon of water) every 3–6 months. Many modern systems include a float switch (wet switch) that shuts down the AC if the drain pan fills, preventing water damage but leaving you without cooling until the line is cleared. Professional cleaning costs $75–$200; a full line replacement runs $200–$600.

Question 26

Wat is een Evaporator coil?

Accepted Answer

The indoor component of a central air conditioning or heat pump system where liquid refrigerant absorbs heat from indoor air, cooling it before the blower fan pushes it through the ductwork. The evaporator coil is an A-frame or N-frame assembly of copper or aluminum tubing with thin aluminum fins, located inside the air handler or mounted on top of a furnace. As warm household air passes over the cold coil (typically 40–45°F), the refrigerant inside absorbs heat and evaporates from a liquid to a gas — hence the name. The process also dehumidifies: moisture from the air condenses on the cold coil surface, drips into a drain pan, and exits through the condensate drain line. A dirty evaporator coil is the #2 cause of AC performance loss (after a dirty filter). Dust and biological growth insulate the coil, reducing heat transfer by 20–40%. Signs of a dirty coil include longer run times, higher energy bills, poor cooling, and ice forming on the coil or refrigerant lines. Professional coil cleaning costs $100–$400 and is recommended annually. Coil replacement (when leaking due to corrosion from formaldehyde-laden indoor air) runs $1,000–$2,500 including refrigerant recharge.

Question 27

Wat is een Building envelope?

Accepted Answer

The physical barrier between a building's conditioned (heated/cooled) interior and the unconditioned exterior, including the roof, exterior walls, windows, doors, foundation, and all the insulation, air barriers, and vapor barriers within those assemblies. A building's envelope determines how much energy is required to maintain comfortable indoor temperatures and how well it resists moisture intrusion. In energy auditing, envelope performance is measured by air changes per hour (ACH50) using a blower-door test: a tight envelope scores below 3 ACH50, an average home 5–7, and a leaky older home 10–20+. Improving the building envelope is typically the highest-ROI energy upgrade: air sealing and insulation together can reduce heating and cooling costs by 20–40%. Key failure points include the rim joist (where the foundation meets the framing), attic hatch, recessed light cans, plumbing and wiring penetrations, and window/door frames. A whole-house air sealing project costs $1,000–$3,500 and is often eligible for utility rebates or federal tax credits (up to $1,200/year under the Inflation Reduction Act).

Question 28

Wat is een Spray foam insulation?

Accepted Answer

A two-component polyurethane foam that is sprayed as a liquid into wall cavities, attics, crawl spaces, and rim joists, where it expands 30–60× to fill gaps and crevices. Two types: open-cell spray foam (0.5 lb/ft³ density, R-3.5–3.7 per inch, $0.50–$1.00/sq ft installed) is softer, allows some moisture vapor permeability, and is used for interior walls and attics; closed-cell spray foam (2 lb/ft³ density, R-6.0–7.0 per inch, $1.25–$2.50/sq ft installed) is rigid, acts as both a vapor barrier and air barrier, adds structural strength, and is required where moisture resistance is critical (basements, crawl spaces, exterior walls). Both types outperform fiberglass batts primarily because they seal air leaks — studies show air sealing alone can reduce heating/cooling costs by 15–25%. A typical 1,500 sq ft attic costs $2,500–$5,000 for open-cell or $4,000–$8,000 for closed-cell. Professional installation requires specialized equipment and PPE; it is not a DIY project.

Question 29

Wat is een Thermostat wiring?

Accepted Answer

The low-voltage (24V) wiring that connects a thermostat to the HVAC system, using color-coded conductors inside a multi-strand cable. Standard wire designations: R (red, 24V power), W (white, heat call), Y (yellow, cooling call), G (green, fan), C (blue or brown, 24V common for powering smart thermostats). Older systems use 4-wire cable (R/W/Y/G) and lack a C-wire, which smart thermostats need for continuous power — solutions include running new 5-wire cable ($100–$300 for an electrician), using an add-a-wire adapter kit ($30–$50), or using a thermostat with a power-stealing feature. Heat pump systems add O/B wires (orange/dark blue) for reversing-valve control. For multi-stage systems (two-stage furnace, two-stage AC), additional wires W2 and Y2 handle the second stage. Typical thermostat cable is 18-gauge, run through walls from the HVAC air handler to the thermostat location. Upgrading from a basic to a smart thermostat costs $150–$400 including installation when existing wiring is compatible.

Question 30

Wat is een Attic insulation?

Accepted Answer

Thermal insulation material installed in or on the attic floor to reduce heat transfer between the living space and the unconditioned attic above. The attic is the single biggest source of heat loss in most homes — the Department of Energy estimates that proper attic insulation reduces heating and cooling costs by 10–20%. Recommended R-values: R-38 to R-60 depending on climate zone (Zone 1 warm = R-30, Zone 7 cold = R-60). Common materials: blown-in fiberglass ($1.00–$1.50/sq ft, R-2.5/inch), blown-in cellulose ($1.00–$1.50/sq ft, R-3.5/inch, better air-sealing), fiberglass batts ($0.50–$1.00/sq ft, R-3.2/inch, DIY-friendly), and spray foam ($1.50–$4.00/sq ft, highest R-value but more expensive). Before adding insulation, a professional should air-seal gaps around wiring penetrations, plumbing stacks, recessed lights, and the attic hatch — air sealing delivers 60–70% of the energy savings. A typical 1,500 sq ft attic insulation project costs $1,500–$3,500 for blown-in installation. Signs you need more insulation: uneven room temperatures, high energy bills, ice dams in winter, and visible joists when looking into the attic.

Question 31

Wat is een AC compressor & refrigerant?

Accepted Answer

The compressor is the heart of any air conditioning or heat pump system — a motorized pump in the outdoor unit that compresses low-pressure refrigerant gas into high-pressure, high-temperature gas, which then releases heat through the condenser coils. The refrigerant (R-410A in most systems installed after 2010, R-32 in newer units, R-22/Freon in pre-2010 systems) is the working fluid that absorbs indoor heat and releases it outdoors. Key diagnostics: if the AC blows warm air, a refrigerant leak or compressor failure is likely. Refrigerant recharge costs $150–$600 depending on type (R-22 is expensive at $50–$100/lb due to phase-out). Compressor replacement: $1,500–$3,500 installed — at this cost, a full system replacement ($4,000–$8,000) is often more economical for units over 10 years old. EPA Section 608 certification is required for anyone handling refrigerants; DIY recharging is illegal. Common failure causes: electrical damage, loss of lubricating oil, liquid slugging, and overheating from restricted airflow (dirty filters or blocked condenser coils).

Question 32

Wat is een Whole-house fan?

Accepted Answer

A large ventilation fan (typically 2,000–6,000 CFM) mounted in the ceiling between the living space and the attic that pulls cooler outdoor air in through open windows while exhausting hot indoor air out through attic vents. Unlike ceiling fans that simply circulate room air, a whole-house fan replaces the entire air volume of the home in 3–5 minutes, creating a powerful cooling effect that can reduce or eliminate air conditioning use during evenings, mornings, and mild-weather days. The fan uses 200–700 watts — roughly 1/10th the energy of central air conditioning (3,000–5,000W) — making it one of the most cost-effective cooling strategies available. Traditional belt-drive models ($300–$600 for the unit) are powerful but loud (3–5 sones); modern insulated-door models from QuietCool ($400–$1,200) and Tamarack ($500–$1,500) operate at 1–2 sones and include motorized damper doors that seal shut when the fan is off, solving the major drawback of older models: massive heat loss through the open ceiling vent in winter. Installation costs $300–$800 for labor and typically requires cutting a ceiling opening, running electrical, and verifying adequate attic exhaust ventilation (the attic needs enough vents to handle the fan's CFM without pressurizing). Most effective in climates where evening temperatures drop below 80°F (27°C) — less useful in the Deep South or humid coastal areas where nights stay warm and muggy. In ideal conditions (dry climate, 15–20°F evening cooldown), a whole-house fan can reduce summer cooling costs by 50–90%.

Huishoudens	157.101
Aandeel eigenwoningbezit	67 %
Klussen per jaar (klimaatinstallatie repareren)	59.658
Draagbaar aantal vakmensen	638
vermeld op HireLocal	16
Dekking	2,5 %
Score	99 / 100

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