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exactly what i was looking for. Thanks.

Jack

Hi,

I cannot find a supplier for duct liner anywhere in Ontario, Canada. For that matter i haven't even been able to find anything on the net. I'm looking for around 100 square feet of 1/2 inch...

Hi,

Quick question. In a two storey house with returns on each level (basement, first floor, second floor) would it be advantageous to damper them so that in the summer only the 1st and second...

Still in the design stage. I'm aware many installers will just use one size, but my question is "is this the correct way of doing things?". What would you do for your own house? I want to make...

So you would use a 5 inch duct for a 25 square foot powder room?

The "experts" are just some colleagues that have been in the business for 20+ years. Perhaps they are just taking the easy way out by using 6 inch branches for every room.

Hopefully someone can enlighten me ...

Dampers are used to control the volume of air that enters a branch, but how do they affect velocity? I would assume the air speeds up as it flows through...

Hi,


Just wondering what issues I would have with using a radial duct design in a two storey house. Basically, I want to have all dampers centrally located in the utility room to make...

only enter exterior walls. when you enter interior walls with no insulation the program thinks you have an exterior wall with no insulation and as such the loads will be off the chart.

Hi,

I'm installing a new hvac system, including ductwork, in a 2000 square foot,
30 year old home with upgraded windows, doors, insulation, etc. The customer would like to be able to have an...

Hi,

I'm currently designing a duct system for a two storey home plus finished basement. It currently only has electric baseboards (no ductwork) and would like to add gas heat and a/c.

I am...