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 mygfcxx1 95
6 ahowell 95
7 KnowledgeBase 95
8 skbloom 80
9 Guest_98024861 70
10 Guest_9311297 70

*Updates every 4 hours

Browse Projects By Category

Question DetailsAsked on 4/2/2015

furnace btus for 2500 sf house in dallas?

Do you have the same question? Follow this Question

1 Answer


You can find some ballpark cost info and general thoughts on types and brands in the Home > HVAC link in Browse Projects, at lower left.

For BTU's it depends on your home layout (sprawling ranch or compact 3 story), whether you have a basement or not, insulation quality, percentage of window area, etc - but for a VERY rough ballpark you can go to this site and run the calculator.

I would expect for that area something around 30-40,000 Btu will be the manual result for a normal 2000SF range house, or maybe up to 50,000 if you want it designed to maintain full 70+ degree temp in the most extreme weather of record. Usually a furnace is NOT sized for the most extreme conditions - the presumption is that in the coldest weather day or two of the year that you can accept a slightly cooler temperature or a slightly overworked furnace - so for instance in Dallas the uniform residential code calls for a design low temp of 22 degrees and a high of 100, even though the record low and high are 1 and 112 degrees respectively.

However, come bid time, you need to have the ACCA Manual J calculation run which determines the requires heating/cooling load. Then Manual S figures the unit sizing to fulfill that need (taking into account unit efficiency and such), and Manual D figures ducting requirements (assuming forced air) to deliver that to the rooms.

Answered 4 years ago by LCD

Related Questions

Terms Of Use
Privacy Policy