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HeatMaster / Damper position issue
« on: November 13, 2019, 12:52:20 PM »
I have a problem with my G200. It's only a couple years old but only has been ru6for one year. Situation:
Start a fire, get boiler up to setpoint and leave. Come back, boiler no longer meeting setpoint, open up firebox and see wood is just smoldering. Damper position is 38% but water temperature is 140 deg. I have to turn it off and turn it back on to get it to open to 100%. This is getting very frustrating. It just started doing this in the past couple weeks. I noted that there is some tar around the damper and it doesnt turn to open in a smooth fashion, acts like the tar is gumming it up a little.
Start a fire, get boiler up to setpoint and leave. Come back, boiler no longer meeting setpoint, open up firebox and see wood is just smoldering. Damper position is 38% but water temperature is 140 deg. I have to turn it off and turn it back on to get it to open to 100%. This is getting very frustrating. It just started doing this in the past couple weeks. I noted that there is some tar around the damper and it doesnt turn to open in a smooth fashion, acts like the tar is gumming it up a little.
2
HeatMaster / In slab design
« on: October 27, 2018, 09:51:56 AM »
I wanted to reduce the temperature of my in slab loop using a 3way mixing valve. In the furnace installation guide it showes two circulator pumps in a primary/secondary configuration. This is a normal configuration and is generally required to protect a standard boiler from thermal shock. I was wondering if that is really required on a heatmaster? My thoughts are that the boiler has a large holding tank and a circulator pumps dedicated to mixing the water inside the boiler. It seems highly unlikely that any thermal shock would be happening with this setup. I didn’t want to setup my boiler in a primary secondary configuration unless absolutely necessary.
Also how are you guys controlling your in slab heat?
Also how are you guys controlling your in slab heat?
3
HeatMaster / G200 with storage?
« on: April 09, 2017, 09:12:40 PM »
Hi I'm a soon to be owner of a G200. I'm heating a 2300 sf home and a shop floor. I have enough engineering skill to be dangerous and I can't really afford to pay a licensed engineer to design the system for me. I've done all my load calculations utilizing various methods online as a check, which is how I determined the G200 should be adequate. I have several questions on system design that I was hoping a few of you experts out there might help me out with. The first is regarding storage. I see many of the other owners who own EKO or TARM style units are installing either pressurized or non-pressurized storage tanks but I'm not seeing many, if any, heatmaster owners talking about storage. Why? I was considering installing a 500 gal storage tank but the design question I have is: with the heatmaster being atmospheric does that mean I need to either install a heat exchanger to use a pressurized storage tank or use a non-pressurized tank? In either case, it seems to me that this would provide a way to decouple system storage from boiler so that I could put glycol in the boiler for protection for weekend getaways.
Regardless of storage, are most of you using a primary/secondary configuration? It seem to me that heatmaster already kind of assumes that because the boiler comes with a circulator with literature that says it is for boiler flow only.
If the boiler is atmospheric then does that mean you don't need to consider system expansion at warm up (expansion tank?)
I would like to post some basic equipment and load data with some of my design assumptions and have you guys shoot holes in it. Would you be willing to do that?
Much appreciated,
Robert
Regardless of storage, are most of you using a primary/secondary configuration? It seem to me that heatmaster already kind of assumes that because the boiler comes with a circulator with literature that says it is for boiler flow only.
If the boiler is atmospheric then does that mean you don't need to consider system expansion at warm up (expansion tank?)
I would like to post some basic equipment and load data with some of my design assumptions and have you guys shoot holes in it. Would you be willing to do that?
Much appreciated,
Robert
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