Learn and Plan to Live
Good point about circulating the back drafted products through the house, notably all the bedrooms on the second floor. Fortunately we didn't have ...
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Recent Posts
almost 3 years by curiousB
1
answers639
Views
Return grill on plenum in basement for 2nd story Unit
Hello again. My house was built in 1995. I have been trying to correct a poorly design/poorly installed HVAC (gas heat and central A/C) system ...
1
answers1031
Views
Furnace sizing, calculations
I have ran a HEATPRO1 model of my second floor room by room and computed a heating load of 37,246 btuh, the furnace serving this area is 79k btuh n...
over 4 years by curiousB
6
answers48
Views
Blower speed for Heating vs Cooling
I had the blower wheel and blower motor replaced 2 summers ago by a service tech (Lennox furnace with A/C). I didn't notice at the time but the tec...
0
answers356
Views
Better but not perfect
Well its 7.5 months since we first discussed this topic. Since then I have had the bonus room floor insulated from the garage by removing the garag...
over 4 years by curiousB
6
answers278
Views
If 6" is 150 then 8" is?
Thanks for the continued guidance HK. If 150 cfm is 6" then if I work backwards to achieve similar flow (FPS) I get 270 cfm for an 8" round and ...
about 5 years by curiousB
6
answers657
Views
Retrofit returns, once easy now difficult
Well now my dilema. How to add returns 15 years after the fact without ripping open a lot of finished rooms. My house is new enough that all return...
about 5 years by curiousB
6
answers93
Views
Calculations
OK so I ran calculations for heat dividing the three areas of the master suite into bed, bath and sitting room. The results were: Bed Bthu 3775...
about 5 years by curiousB
6
answers841
Views
Can I add extra returns from 6" round duct
Thanks HK, One of the returns in the bonus room runs from the cold air (CA) plenum in the basement through 6in round duct (insulated). Extending...
about 5 years by curiousB
6
answers653
Views
Bonus Room HVAC balance
I have a bonus room over a triple car garage in a 15 year old house. The room was finished with the original build and had HVAC and insulation thro...
6
answers1279
Views
