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Heat load calc( to pay, or not to pay)
I've been beating myself up over this, so I figured I'd ask for opinions here. Planning on having a radiant geothermal system installed in the house this summer. I purchased the "modern hydronic heating" book on this site so I'm able to do as much reading as possible. My geothermal contractor wanted me to get a heat load cal so we can determine the heat pump size, but I'm dragging my feet.
Being an engineer, I've been doing all my calculations from the book ( heat loss, water temp, flow rate ect) and I've been wondering if I should go with my calculations, or pay someone ($400) to come in and do it for me. Only thing pushing me to paying someone is so they can double check my numbers.
House is half gutted as I'm still in the process of having everything sprayed in. So whoever does come to do my load calc will be basing it off assumptions.
What do you think?