|How do you attach a cold air return to previous ducting?
This is a very interesting question…
I think that you can attach a cold air return to the previous duct exactly the same way as you will attach it to the following one…
How do you install condensation drain to cold air intake?
You do not need a condensation drain for the cold air intake, just insulate it.
How do you line a hvac plenum to reduce noise?
Well, at first you have to disconnect it, glue acoustic duct liner on the inside and put everything back together.
How do you prevent mice from gaining access to furnace intake vent?
You should install a screen.
How do you seal microwave exhaust vent pipe?
You can use aluminum tape.
How far away should you insulate from a furnace?
When it comes to insulation – every sheet metal part should be insulated.
How many individual rooms can I put into one cold air return?
How many vents can I have off a 10" duct?
Four 6” vents.
How many vents should be attached to a/c thermostat?
Vents to thermostat?!? Ask you doctor for the additional medications…
How to build a condensate P- trap?
Indeed, you can build it from four ¾” PVC 90*-s, but you can purchase one on the right.
How to mount a drain line for condensate pump?
You have to run it next to any pipes in the ceiling and fix it with the zip ties or electrical tape. Otherwise use plastic clamps. Buy them on the right.
How to properly install duct work in a wall?
This part of my Ductwork Installation Guide book dedicated to this issue.
How to properly install insulation on duct work?
Please learn how to do it on this page.
How to run ductwork through top plate?
I was really puzzled why this visitor didn’t find the answer to this question! Just take your time, look around, on my site you can find almost any step-by-step instructions to almost any ductwork related issues!
How to screw up your neighbors central ac systems?
This question came from Manhasset, New York!
Well the best and the most innocent way of doing that is just let your dog to pee on your neighbor’s condenser…
How to split force air 6in ductwork in four?
You can use Tees, Wyes, Saddle Tees or look at the other option on this page.
How to start installation of hvac ducting?
Well, for some of you it sounds as an oxymoron, but you have to start from purchasing of my Ductwork Installation Guide book…
How to tie multiple condensate drains together with traps?
You have to use the PVC Tee-s. Buy them on the right.
I'm reading some stuff online and also Section 401.4 of the Int'l Mechanical Code, about Intake Openings for equipment. It seems furnaces (e.g., natural gas) require some sort of air intake vent. This perplexed me. My home's natural gas furnace only has exhaust piping but no separate piping for an air intake; I always assumed the needed air for combustion was taken from my basement's ambient air, through side vents in the furnace case. Do newer furnaces require separate air intake piping? Is ambient air around the furnace inadequate for the combustion process?
Combustion air is taken from your leaky house BUT as new houses in Canada are so airtight the bldg code changed 25 yrs ago to require a combustion/comb air intake. That was with mid efficiency furnaces that used a chimney.
Retrofits are not covered as they are usually leaky.
Now we can only use high efficiency furnaces with no chimney and most people use the 2 pipe system to take the comb air from outside.
We can still take it from the house but if your house is very airtight that is not a good idea. The pressure switch for the burner ensures you have enough comb air either way.
Point is if your house is very airtight you may need a combustion air pipe from outside but if you use a 2 pipe system you don't have to worry about it.
If the furnace room is sealed then you need a comb air pipe for natural draft units like a water heater. If it is open to the house you don't.
I have 16x8 supply and return ducts. I want to remove the ducts and run exposed 10 inch round supply and return. I can't find a square to round transition piece in that size. Any suggestions?
Well, 10" round is equal to 10x8 duct, so good thing you didn't find any in 16x8 to 10" round. You would need to run 14" round to move the same amount of air.
3. How to Make from Round to Square Transition
Learn how to make round to square and to rectangular transition by using hand tools only. 27 pictures. Price: $2.50.
I have old wall ducts replacing them is it better to put the register on the floor or in the wall?
You can put them either way, the way you like more.
I need to include a 90 degree turn in my flexible ductwork - how much airflow will I lose?
From different sources 90* elbow equal from 5 to 10 feet of straight duct.
If heater inducer motor dies, how safe am I?
I think that you should be OK, because the pressure switch will shut your furnace off.
If I shorten my duct will my exhaust fan work better?
If the fan blade on your air conditioner comes off will it damage the unit?
But what do you think would happens genius?
Illegal furnace in garage.
Hmm, an illegal furnace in your garage!?! Where it came from, from Mexico?
Installing ducts in an existing home what to expect?
Is a furnace plenum supposed to mix air?
Well, pretty much what you can see in these pics…