It is not that difficult to learn how to do fairly accurate load calcs.
Even I can do them, & have only a few brain cells left. :whistle:
You have to evaluate the duct system, airflow, etc., before you even consider providing them with an estimate.
A load calc is essential before providing any equipment sizing numbers.
If the heat gain & loss are considerably more than what is considered, in the ballpark, then weatherization work is called for along with duct efficiency work...before proper equipment sizing takes place...
I have done one using HVAC Calc Residential 4.0.
The house is 1200sq ft for basement and 1200sqft main floor R20 in walls on main floor, R38 in half wall in basement R10 foamboard for 3 ft of concrete basement walls. 1600 sq ft vaulted ceiling with R38. The main wall is 435 sq ft south east facing and has 181 sq ft of low e argon windows so both heat gain and heat loss.
I come up with a 2 ton for cooling
a.k.a. You do it MY Way, or hit the highway ...
Any1 should give you
2. load calc
... so here it is
1. A lot ... $ 1#,3#5.#7
2. Same as you stated above.
3. WHERE Are you buying me dinner?
I don't understand all your jibberish dan sw fl.
1. they need to visit to evualate.
2 see and understand what is required
3 estimate and properly size equipment
I should have put it out there as a question for all of the ones that don't understand. Why does everyone think that they don't need to do a load calc.
just guess how much of your money you'd like to give them and flush the rest as a rot
My electrical utility bill average for Dec to Feb was 1500kw /month this is 170500 btu's day and 12 hours / day ( darkness without solar gain) of usage would be 14208 btu's/hr. There is no way I would need 38000btu's hr.