Problems With Dayton 5UT20 Hot Water Garage Heater - HVAC - DIY Chatroom Home Improvement Forum

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Old 03-16-2009, 12:07 AM   #1
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Problems with Dayton 5UT20 hot water garage heater

I am having trouble getting this heater to put out any sort of substantial heat. I plumbed it into the boiler loop with 1/2" pex tubing and I'm thinking that is the root of my problem. I have 5 zones in my system and the garage heater is the only heater on that zone. I'm getting good circulation and the boiler system is set at 180 degrees. I live in the Dakota's and it won't even bring the temp up high enough to register on a thermostat. Any ideas on what I could check or change? I'm about ready to just buy a electric garage heater and give up on using hot water? I have a two car insulated garage.... Thanks for any future replies!


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Old 03-16-2009, 04:23 AM   #2
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What is the entering water temp at the heater, and what is the leaving water temp at the heater.


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Old 03-16-2009, 05:47 AM   #3
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the grainger catalog calls for 200F inlet temp with a 20F drop going back out,and shows a 1-1/4" inlet supply.if the piping is anything less then that it could be effecting the heat coming off the coils. check the incoming air temp and whats going out.
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Old 03-17-2009, 03:28 PM   #4
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what temp do you have the contol set at to turn the blower on?
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