Need vent fitting with drain for Hot Dawg heater?

[jeclarke]

I'm making plans to install a Hot Dawg in my garage. The heater will be about 2 feet from the exterior wall and the exhaust vent on the heater will be about 12 inches below where the exhaust will exit thru the exterior garage wall. So while the overall exhaust is horizontal there will be a short vertical section. I'm trying to determine if I will have condensate collecting and if I need to use one of the exhaust pipes with a small drain tube that one is supposed to attach a flexible drain tube to.

Seems like I've read a number of posts where folks are saying they have no condensate. I don't want to install this drain fitting if it's not needed.

I live in central PA and will only use the garage heater occasionally. I won't leave it on all the time.

Also, what are your thought about single vs double wall vent tubing?

thanks,
John

 

[allinon72]

You're probably OK without the condensate drain but it's impossible to know for sure before you fire up the heater.

A horizontal vent run requires double wall class IV vent pipe.

 

[Showkey]

Read the instruction horizontal venting requires a CATIII stainless single wall.

Manual will say something like this:

All horizontally vented units manufactured after July
of 2011 must be vented as a Caterory III Unit/Utility Heater in compliance with UL 1738 & ULS636




The manual ( install instructions) also address the condensate drain usually required in commercial installs only.

 

[crowwinger]

I have a similar setup and opted not to use the condensate fitting... in my heater manual is said this was only a requirement for commercial installs.

I did use Category III venting (which is a sealed single wall) vs. the B-Type (double wall). If you want to stay in code, you need to use Cat III as it is sealed for the positive pressure of a horizontal install.

 

[crowwinger]

Sorry, I duplicated the previous response...