Mr. Heater Big Maxx vs Modine Hot Dawg?

[Zebu Fellenz]

Hey Everyone,

I need to purchase two Natural Gas heaters for use in greenhouses.

For this use the heating season is pretty short (2-3 months in an average season) but the environment is pretty harsh (high humidity, dusty, etc).

I know the Hot Dawg has a good reputation so I'm mostly curious about the Big Maxx, the price difference is pretty substantial (to the point where I could buy a spare Big Maxx to keep on the shelf and still spend less than the two Hot Dawg units).

Is there a good reason the Big Maxx is so much cheaper? Reliability issues? Quality of materials? Very interested in hearing from anyone using a Big Maxx, ideally if you've been using it for a few heating seasons.

-Thanks

 

[regguy1]

I've had a 45K Big Max installed since Jan 2010 and it's still working fine, see it here: https://www.garagejournal.com/forum/threads/26-x-30-garage-photos-threads-and-videos.140674/

 

[Dagny]

Made by chicoms get a Reznor.

 

[gmcgeo]

From my experience its preference , they both work well.

 

[Phil P]

In some jurisdictions only heaters certified for greenhouse use can be installed.

Phil

 

[gmcgeo]

In some jurisdictions only heaters certified for greenhouse use can be installed.

Phil

Modine Heaters are certified for greenhouse use, everywhere

 

[red94chev]

Just went through my 2nd winter with my 80k Big Maxx. No issues so far.

 

[gmcgeo]

Just went through my 2nd winter with my 80k Big Maxx. No issues so far.

in a greenhouse?

 

[toyotadriver]

I've had 2 Mr. Heater Big Maxx heaters (45k and a 80k) for 8 years now. Had a minor issue with the igniter in the 45k but blew out the dust and it's worked fine since. I think the Modine is a fine heater and quite likely better than my Mr. Heaters. But, I'm happy with what I have and wouldn't hesitate to buy another one.