Furnace Installation in Laconia, NH
A new furnace here will run from September through May every year. Tell us about the house, and a licensed contractor who covers Belknap County will get in touch.
Tell us about the job
It takes about a minute.
Nine months of heat in Laconia winters
A furnace in Laconia works from September through May. Winter nights average 14°F, and the burner has to bring the house back up to temperature on the coldest ones without much rest in between.
Nearly half the homes in the area heat with fuel oil, so a lot of installs mean matching a new furnace to an oil system already in place, or deciding whether to switch. If you're putting in a gas furnace, it has to meet the federal minimum of 80 percent AFUE. Belknap County also sees its share of winter storms and wind, so a furnace that starts reliably after the power comes back on matters as much as the furnace itself.
- 9 months
- September through May, your furnace is on duty
- 14°F
- the average winter night it heats against
- 80% AFUE
- the federal minimum any new unit must meet
NOAA nClimDiv, 1991–2020 normals
New Hampshire has no state license for HVAC contractors.
There is no state board behind this job, no test a contractor took, no record kept in Concord. New Hampshire does not license or register HVAC contractors, so there is nothing to check at the state level.
For a furnace installation, the protection comes from the local building office instead. In most cities and counties, replacing a furnace needs a permit and an inspection once the work is done, checking the venting and gas connections before it is signed off. That inspection, where it applies, is what stands between this reader and a bad hookup, not a license number.
Source: New Hampshire General Court
- What size furnace does my house need?
- There is no answer to that without knowing the house. A contractor sizes a furnace by doing a load calculation, which looks at the square footage, the insulation, the windows, and how much air leaks in and out. A furnace that is too big cycles on and off too often and never heats evenly. One that is too small will run constantly once the nights drop into the teens here and still fall behind.
- How do I know it's time to replace my furnace?
- Watch for higher gas or oil bills without a reason, rooms that stay cold no matter how long the furnace runs, and repairs that keep coming back. Age matters too. A furnace that is getting old works harder to do the same job it used to do easily. Heat is needed here from September through May, so a furnace that is already struggling early in that stretch is not going to hold up through a night at 14 below. If a repair is priced close to what a new furnace would cost, that is usually the point to stop repairing.
- Is a high-efficiency furnace worth it?
- It depends on how long you plan to stay in the house and what fuel you are using now. Furnaces sold today have to reach at least 80 percent AFUE, and high-efficiency models go higher than that, meaning less fuel is wasted as exhaust. Close to half the homes in this area heat with fuel oil, and switching to a higher-efficiency gas furnace can change that math a lot depending on what is available at the house. A contractor can walk through the actual numbers for your home and your fuel source before you decide.