HVAC Installation in Hempstead, NY
A new system here will heat from October through May and cool from June through September every year. Tell us about the house, and a licensed contractor who covers Nassau County will get in touch.
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A system that has to work almost every month here
In Hempstead, something is asking your system to run nearly all year. Heat from October through May, eight months, on nights that average 28°F in the dead of winter. Then cooling from June through September when afternoons hit 82°F. That leaves only a short stretch when the system gets to rest.
A new furnace or heat pump here has to hold up through a long, cold winter without faltering, and a new air conditioner has to handle real summer heat, not just take the edge off. Whatever gets installed has to be sized and set up for both jobs, because in this area it will be asked to do both.
- 8 months
- October through May, your system heats
- 4 months
- June through September, it cools
- 28°F
- the average winter night it heats against
- 82°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
- When should I replace my HVAC system?
- Replace it when repairs start costing more than they're worth, or when another breakdown feels like a matter of when, not if. An aging furnace or air conditioner tends to fail at the worst time, and homes here need heat or cooling every month of the year, so a system down during a stretch of 28°F nights or 82°F afternoons is a real problem. If a contractor is already telling you the same part is failing again, that's usually your answer. A contractor can also tell you whether the system on hand is worth repairing again or worth replacing.
- Should I replace my furnace and air conditioner at the same time?
- If they're close in age, yes. A furnace and the air conditioner paired with it usually share a blower and sit on the same coil, and putting in a new one without the other can mean the two don't work together the way they should. Homes here run the furnace from October through May and the air conditioner from June through September, so both sides of the system are working hard all year long. A contractor can look at both and tell you how much life is left in each before deciding.
- What happens during an HVAC installation?
- A contractor first sizes the new equipment to the house, since a furnace or air conditioner that's too big or too small won't heat or cool evenly. The old equipment comes out, the new furnace, air conditioner or heat pump goes in, and it gets connected to the existing ductwork, gas line or electrical circuit, and the vent or condensate line. Once it's running, the contractor checks the airflow, the refrigerant charge if there's an outdoor unit, and the thermostat before calling it done. The exact steps depend on what's being installed and what's already in the house, so a contractor can walk through what applies to yours.