Modine Hot Dawg Garage Heater

[Maymybonneliveforever]

I'm installing a 45, 000 BTU Natural Gas unit in a Brampton Ontarion garage and had a couple questions.

1. I want to install a B Vent as shown in the middle left photo shown below but have seen a house down the street install one horizontally out the side fo the garage approximately 12" below the sofit. Is this what code should be for my area?

2. The vent outlet is 3", can I install a b vent in 3" all the way to the vent cap?

3. Who in my area would have the best pricing on B vent?

4. Does code require me to use a drip leg and since it's a power vent would I need to angle it down 1/4" per 12"?

[Maymybonneliveforever]

I figured someone would have experience with NG garage heaters. Guess not.

[Maymybonneliveforever]

Looks like I'll have to try to do more research.

[rotjong]

I just got a lennox furnace installed in my garage, and the instructions read that you can install the vent vertical thru the roof or horizontal thru the wall.
I went horizontal thru the wall that was way easyer than thru the roof as it would take way more B vent pipe plus less chance of a leaky roof.

A B vent, you can stick it right thru to the rain cap

B venting is basically double wall pipe with the inner pipe being stainless steel

As for my pipe I just put a liitle slope on the pipe so the condensation water drips out of the rain cap.

As for best pricing you would have to shop around, for me Home Hardware was 5 min away as Rona- homedepot 30 min away. I Think I paid $46.00 for a 6' chunk.

[Maymybonneliveforever]

Thank you so much for the reply rotjong, I had almost given up on this thread. I checked with Home Depot, Rona and Lowes and was told that they don't sell B Vent pipe in the Toronto Area. I called a HVAC place and when they knew I wasn't in the HVAC business and was a DIY'er they quoted me about $165.00 for the vent alone which had a 45 degree angle connection, 36" B Vent and a cap. I didn't ask for a price on a clean out since I felt there quote was very high. I know the exhaust on the garage heater is 3" so I figured I could go 3" throughout and also thought about slopping it down somewhat since it's a power vent.

I guess I'll have to keep looking.

[swe13]

rotjong,

Can you tell me how much condensation you get dripping out the vent pipe?

I am considering venting over my deck, which doesn't get use in the winter, but I also don't want a lot of condensation dripping on it and ruining it.

thanks

[Maymybonneliveforever]

I have the unit mounted and electical and thermostat hooked up but I still don't have the gas and vent done. If you're concerned about condensation you can always install a clean out on the B vent and drain occasionally but from what I've heard you won't get a lot if any.

[rotjong]

[QUOTE=swe13;9773414]rotjong,

Can you tell me how much condensation you get dripping out the vent pipe?

I am considering venting over my deck, which doesn't get use in the winter, but I also don't want a lot of condensation dripping on it and ruining it.

thanks[/QUOTE


(swe13 disregard Pm)

I have very little condesation comming from the vent pipe,.When it is -20 then I see a little and the ice sort of builds up underneath the vent pipe.

It all has to do with the outside temprature.

[Maymybonneliveforever]

Garage heater has been hooked up and installed as of yesterday. Running fine and no condensation so far.

Thanks everyone for your help.