maintaining House temps

maintaining House temps

PostBy: mcguirehg On: Wed Jan 22, 2014 11:16 pm

Trying to figure out settings on new EFM. I thought I had air in the line, but isolated zone and appears to be air free. I have teeth setting at 5 and air at 4.5. The aquastat is set at 165 and 200 with 10 diff. The zone is calling, but I can't get the temp above 67 on the main floor. The radiators (slant fin) don't appear too hot...thoughts?
mcguirehg
 
Stoker Coal Boiler: EFM 520
Coal Size/Type: rice
Stove/Furnace Make: Herman DVC 500 & EFM 520

Re: maintaining House temps

PostBy: McGiever On: Wed Jan 22, 2014 11:48 pm

What does the boiler gauge say for water temp?
McGiever
 
Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
Hot Air Coal Stoker Stove: HARMAN MAGNUM
Hand Fed Coal Stove: RADIANT HOME AIR BLAST
Baseburners & Antiques: OUR GLENWOOD 111 BASEBURNER "1908"
Coal Size/Type: PEA / ANTHRACITE, NUT-STOVE / ANTHRACITE
Other Heating: Ground Source Heat Pump
Stove/Furnace Make: Hydro Heat /Mega Tek

Re: maintaining House temps

PostBy: mcguirehg On: Wed Jan 22, 2014 11:50 pm

It reads 156 degrees...the returns feel hot?
mcguirehg
 
Stoker Coal Boiler: EFM 520
Coal Size/Type: rice
Stove/Furnace Make: Herman DVC 500 & EFM 520

Re: maintaining House temps

PostBy: mcguirehg On: Thu Jan 23, 2014 12:19 am

house is at 66 degrees and wont go higher? I have thermostat set at 75 degrees?
mcguirehg
 
Stoker Coal Boiler: EFM 520
Coal Size/Type: rice
Stove/Furnace Make: Herman DVC 500 & EFM 520

Re: maintaining House temps

PostBy: Pacowy On: Thu Jan 23, 2014 12:57 am

How wide is the ring of ash around the fire?

Mike
Pacowy
 
Stoker Coal Boiler: H.B. Smith 350 Mills boiler/EFM 85R stoker
Coal Size/Type: Buckwheat/anthracite

Re: maintaining House temps

PostBy: mcguirehg On: Thu Jan 23, 2014 1:22 am

At the present time there isn't much of a ring around the fire. I've been playing with this to figure why the stove is no reaching the desired thermostat setting. I increased teeth and air from 4 to 5 and 4.5 and to 6 and 5.25 and most likely reason for a small ring....Should I bring settings back down? I can't figure out why the house is not warming up correctly?
mcguirehg
 
Stoker Coal Boiler: EFM 520
Coal Size/Type: rice
Stove/Furnace Make: Herman DVC 500 & EFM 520

Re: maintaining House temps

PostBy: Pacowy On: Thu Jan 23, 2014 1:35 am

I'd leave the feed alone and add air until you have a consistent 2" ash ring around the fire. That tells you that you have the right fuel-air mix. How about bump the air to 6 and let it crank for a bit.

Mike
Pacowy
 
Stoker Coal Boiler: H.B. Smith 350 Mills boiler/EFM 85R stoker
Coal Size/Type: Buckwheat/anthracite

Re: maintaining House temps

PostBy: mcguirehg On: Thu Jan 23, 2014 1:42 am

Increased air to 6. I'm only heating 3000 square feet, including finished basement. It makes me wonder if something is not set correctly. I should get out 66 degrees on the main floor. Outside temps are about 10 degrees
mcguirehg
 
Stoker Coal Boiler: EFM 520
Coal Size/Type: rice
Stove/Furnace Make: Herman DVC 500 & EFM 520

Re: maintaining House temps

PostBy: waldo lemieux On: Thu Jan 23, 2014 1:52 am

Do you have a bypass loop? Anything new about this system? Has it performed well in the past?
waldo lemieux
 
Stove/Furnace Make: efm
Stove/Furnace Model: s-20

Re: maintaining House temps

PostBy: mcguirehg On: Thu Jan 23, 2014 1:59 am

This was recently installed and was working fine, but can't get temps up out of radiators. I thought I had air in the line, but appears to be no bubbles. The return is hot on boiler, but floor is not warming up, been at 66 degrees all day. I'm not sure if the stove has a bypass loop or not. I'm just learning about the boiler,
mcguirehg
 
Stoker Coal Boiler: EFM 520
Coal Size/Type: rice
Stove/Furnace Make: Herman DVC 500 & EFM 520

Re: maintaining House temps

PostBy: waldo lemieux On: Thu Jan 23, 2014 2:27 am

so the existing radiation was able to maintain temps using another heat source? Is there a pipe between the supply and return piping at the boiler?
waldo lemieux
 
Stove/Furnace Make: efm
Stove/Furnace Model: s-20

Re: maintaining House temps

PostBy: McGiever On: Thu Jan 23, 2014 5:00 am

Can you show us one of these radiators?
How big are the pipes distributing water around the house?
How many zones?
McGiever
 
Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
Hot Air Coal Stoker Stove: HARMAN MAGNUM
Hand Fed Coal Stove: RADIANT HOME AIR BLAST
Baseburners & Antiques: OUR GLENWOOD 111 BASEBURNER "1908"
Coal Size/Type: PEA / ANTHRACITE, NUT-STOVE / ANTHRACITE
Other Heating: Ground Source Heat Pump
Stove/Furnace Make: Hydro Heat /Mega Tek

Re: maintaining House temps

PostBy: Rob R. On: Thu Jan 23, 2014 6:08 am

Depending on how your controls are setup, the boiler might be maintaining temperature off the low limit setting on the aquastat. If there is nothing connected to the TT terminals in the aquastat, change the low limit setting to 180 degrees.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice/buck
Other Heating: Dad's 1953 EFM Highboy

Re: maintaining House temps

PostBy: stoker-man On: Thu Jan 23, 2014 6:52 am

The water should be very cool coming back. Maybe the heat in your return line is heat from the boiler feeding backwards. Are you sure it's circulating at all? It doesn't sound like it and also, are you sure your circulator is running?
stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

Re: maintaining House temps

PostBy: Sting On: Thu Jan 23, 2014 8:07 am

The return lines from the zones should be 12% + or - 2% less that the temperature of the supply lines

You can find out easily with a 40 dollar non contact thermometer - once you check that you can use the same tool to move around the system and balance the load
Sting
 
Other Heating: BurnHAM=NG-gas