Software

zeb_3

What software do ypu guys use for heat gain calculations?

Firedragon_4

I've used this for twenty years,

never let me down and the first three are on-the-house!

http://firedragonent.com/Software.htm

A.J.

I'v been using Wrightsoft

for about three years. It will just about do it all (loads,duct lay out, radiant, or proposals. If you are looking for a program that can do it all this is it but there is a steep learning curve and the price is a bit steap if your buying more than one modgual at a time.
Kupetz's Plb & Htg

Paul Pollets

I use

The Wirsbo ADS program for radiant or cooling loads and The slant-fin program for radiators only; HVAC CalcPlus for ducted loads.

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pitman9

Wrightsoft's offerings

If you're just doing heat losses many programs will suffice. Once you start doing duct design something like Right Suite with J, D and Draw can't be beat.

I've been using it for about 2 years now. I plan on going to one of their training seminars but I can do a home layout with ductwork in under an hour from start to finish.

Constantin

For heat gain,

HVAC-Calc is pretty decent. See my updated homeowner review on HVAC-Calc on my web-site. If all you're doing is calculating heat gain, or you cannot afford the pricier alternatives, this is a good start and easy-to-use.