Ask Your Question

Angie's List Answers is the trusted spot to ask home improvement and health questions and get answers from service companies, health providers and consumers. For ratings and reviews on companies in your area, search Angie's List.

Top 30 Days Experts
Rank Leader Points*
1 kstreett 240
2 Guest_9020487 110
3 Guest_9190926 105
4 GoldenKid 100
5 ahowell 95
6 KnowledgeBase 95
7 skbloom 80
8 Guest_98024861 70
9 Guest_9311297 70
10 Guest_9400529 70

*Updates every 4 hours

Browse Projects By Category

Question DetailsAsked on 1/13/2015

i need someone to come out and tell me if my furnace is big enough. we just purchased our home and it is very cold

the furnace does not appear to be able to heat both the main floor and the basement

Do you have the same question? Follow this Question

4 Answers


Where is your home located. Without that location I can not give you any advice. Ray

Source: www.koolray heating and

Answered 5 years ago by Raymond Gonzalez


First check the system's filter a clogged filter will cause the system to shut down, before the desired temperature is reached.

Other then something simple, you need a great HVAC Contractor,to check the system,likely needs a repair, unusual to be undersized.

Watch this ,on how to find a great contractor.


Answered 5 years ago by BayAreaAC


If your furnace were merely undersized, you might not be able to get it toasty warm, but it probably would get it warmer than "very cold", unless you're encountering some record cold temperatures or you're keeping the windows wide open.

The first thing I would suspect is that the furnace isn't producing any heat at all. Does the air coming out of the registers even feel warm? And if it is warm, does it feel like it's blowing with sufficient pressure?

If it's not blowing at all, then evidently the fan just isn't blowing, that's one set of possible problems. If it's blowing but it's not warm, then your furnace evidently isn't generating heat. If it's blowing but not with sufficient pressure, then either the fan is faulty or, as someone else suggested, something's blocking the air flow. (Don't let anybody sell you a duct cleaning, it's very unlikely dirty ducts would cause more than a minimal reduction in air flow.)

Things like this can be as simple as the power to the furnace is turned off or the gas to the furnace is turned off. This sounds stupid, but I've done it myself!

Source: more common sense than actual experience

Answered 5 years ago by Peter Piper


Good comment by BayAreaAc as usual.

Of course, check for drafts that are letting cold air into the house/warm air out. Had several cases in the past where an open attic hatch/door or seasonal whole-house ventilation fan with damper/shutters was wide open in the winter.

Make sure someone did not close the air vents/dampers - maybe they left part of the house unventilated to save energy (especially during A/C season) and you have to open some grates/vents.

Another possibilitiy - systemm may be sized for a cold (say 50 degree) garage, and you are heating it - I know our system cannot keep up with garage and house both when it gets below about 20 below, so maybe if you are in the extreme unusual cold in parts of the midwest right now the conditions are below what your heating system is sized for, and you will have to keep gaarage and basement cooler to let more of the heat work on heating the main part of the house. Of course, do not turn so low you start frosting the walls or freezing pipes.

If you just moved in, and the prior owners left the basement unheated, it can take a week or two to bring it up to household temp because you are heating an incredible heat sink of foundation, slab, and surrounding dirt, plus most of the basement heat tends to infiltrate to the upstairs.

Your Search the List expert is the Heating and A/C category in the Home Improvement area - he can check furnace function, and run a Manual J calculation to determine the approximate furnace size needed for your house and see how that matches to your current one.

Answered 5 years ago by LCD

Related Questions

Terms Of Use
Privacy Policy