Question: How do I know what size A/C system my house needs? Answer: When considering the size of your central A/C unit, there are a few factors in play. Primarily, the size of your house is used to ...

This is part 1 in an ongoing series on HVAC load calculations. The folks at SNIPS have asked me to do a basic how-to article about HVAC Manual J load calculation as that is allegedly a big part of my ...

I’m trying to figure out the correct size boiler I need to get for my building. Can someone recommend an engineer to do a Manual J heat load calculation?

Manual J may overestimate heating loads due to conservative assumptions and sensitivity to unknown insulation values. Thermentor™️, a virtual load calculation solution, is an alternative to Manual J.

Designing a temporary heating system differs considerably from permanent installations. In early construction stages, you might face a tight roof with walls of sheet plastic, or nearly complete walls ...

As we've discussed in the last two Code Calculations articles, when calculating the total load on your system, you must first identify specific types of loads. Then, you can calculate each load. For ...