Heating Help

Mark and Paul

@ May 24, 2012 11:59 PM in Lochinvar listens....

Mark - No I havn't had the time ( work has been crazy here )
Paul - That is how I have it set up now - But I shouldn't have to do it this way.
Why would any boiler control turn the pumps off when the boiler overheats?

Mark

@ May 20, 2012 11:23 PM in Lochinvar listens....

The boiler WHN 285 - Was not bouncing off the limits it was just touching the auto reset limit when it was running flat out in space heating mode and switched over to indirect mode. ( I throttled the boiler down to 50% firing in indirect mode)
We had a week of cold weather here this winter and I had the MHL set at 200*, AHL set at 190*, modulating max temp set at 170* with a 20* delta T.
At 100 % firing rate at 170* if the boiler switched over to indirect mode it wouldn't throttle down fast enough to not hit the lower limit.

Tim

@ May 20, 2012 11:05 PM in Concentric vent termination

You might want to check the install manuall for Weil McLain boilers. CGs
the codes don't mean a thing IF the installation manual says it is OK to do something and vice versa.

Also - How would gasses get into the building if the OTHER appliance is closed combustion.
If you don't want to use the space around the B vent as a duct for the combustion air then run both PVC pipes up to the top of the chimney and do a concentric vent.

Venting

@ May 19, 2012 9:43 PM in Concentric vent termination

B vent is NOT under positive pressure - it is designed to be used in a negative pressure venting only.  You would be sealing the chimney at the bottom and it is a closed combustion appliance. It is legal to use the chimney as a chaseway for the sealed combustion airflow. You can use a vertical chaseway ( chimney ) for multiple venting ducts as long as the chimney is no longer used for venting of unducted gasses.

venting

@ May 17, 2012 9:23 PM in Concentric vent termination

Since only one is concentric - Run the new vent pipe up next to the existing 8" B vent. Install another B vent pipe (only at the top), run the new PVC pipe through the new B Vent pipe and out the top of the B vent cap, ( cut a hole in it) terminate the PVC pipe at the same height as the 8" B Vent top. I would make sure that the new B vent cap is at least 18 inches lower than both terminations. Now install another pipe into the chimney chaseway and use the chimney chaseway as your combustion air intake. I have done this before with the local inspectors approval beforehand. Worked great. The new B vent must be at least 1 inch larger that the OD of the PVC vent pipe because the combustion air will be drawn in through the new vent cap and down the chimney chaseway. The bottom of the chimney chaseway needs to be sealed so all of the combustion air comes from outside.

Mark E.

@ May 17, 2012 9:06 PM in Lochinvar listens....

Mark do you know if Lochinvar solved the problem with the pumps shutting off when the boiler hits either of the limits???

line up

@ May 13, 2012 8:47 PM in munchkin 199m r1 blower change

It is not uncommon for the gas pipe to not line up 100% but it did come apart. Are you sure you installed the right swirl plate? Sounds to me like something isn't back the way it came apart.

Dar

@ May 12, 2012 11:53 PM in Munchkin 140m Blower c

It can't stop because then you wouldn't have any fire because it is a negative pressure gas control. If the blower is not running it won't draw gas into the combustion chamber.
So it has to be running.
Get the boiler serviced.
Steve

Munchkin

@ May 12, 2012 11:00 PM in Munchkin 140m Blower c

DAR - whrn you say the blower stops - does it actually stop or does it just slow down?
On a call for heat the blower will come up to full speed and then slow to about half speed - the burner then fires up - Then the blower will step up to full speed as needed.
It sounds to me like the boiler is not sensing a good flame signal. The boiler needs to be serviced badly. Call Munchkin - they will give you the name of the local distributor and they should be able to give you the name of someone qualified to repair your MUNCHKIN. I am the local guy here.

Paul

@ May 12, 2012 10:53 PM in munchkin 199m won't stay on

call me tomarrow afternoon - 616-723-1720
Steve
BELTLINE HEATING

Z man

@ May 1, 2012 9:37 PM in Weird debris in Lochinvar HX

Z - man -- If you are loosing the plastic parts of the boiler it is due to exhaust reversion. You need to seperate the intake and exhaust vertically by at least 18 inches.  Never use a concentric vent termination.

comfort

@ April 27, 2012 10:17 PM in Replace steam radiator system with high-velocity mini duct?

High velocity forced air will NOT create the same comfort level as the rads did. It also will have some air velocity noise. Make sure that the water coil You use is oversized to allow the high eff. boiler to work at lower temps.

Bad connection

@ April 22, 2012 9:24 AM in Baxi Luna no DHW

It could be just a loose connection. Hold the wires firmly with one hand and then wiggle the wires on one side of where you are firmly holding them and see if the temp fluctuates. Then wiggle the other side. If You get a flucuation of the sensor side - hold the wires firmly right at the sensor and wiggle them again. If no change - change the sensor.

air in system

@ April 19, 2012 8:45 PM in baseboard heating - hearing water sloshing around

It is air in the system.  What is your water pressure at??? It should be at 12 PSI.
lack of water pressure will cause the system to trap air.

F10

@ April 17, 2012 10:27 PM in Munchkin 926 upgrade gives F13 error

F10 is caused by flame failure after ignition not failure for the burner to light. If Your boiler is sitting on the floor then check the drain line for blockage. Also put a level on the blower transfer duct to the front of the heat exchanger. The boiler has to tip slightly backward to stop collection of water in the front of the heat exchanger. Do NOT put the level on the top or front of the boiler case.
If your boiler is holding water the new style 926 control won't help. Your flame sense should be fairly constant. If it is jumping arround a lot then there is a problem.
The burner should fire off with a D7 reading ( flame current ) of at least 1.5 and quickly build to at least 3. A clean properly set up boiler will have a 4.0 reading.

With the 926 control You should see at least 9 micro amps.

zone valve

@ April 15, 2012 11:20 PM in Baseboard Heating

sounds to me like a zone valve is partially open.

loop

@ April 15, 2012 11:18 PM in Buried copper piping leaks

How I would build an expansion loop for the main is - (if You have the room ) buy part of a roll of 2 inch soft copper. don't straighten it out. break out enough concrete to put this under the floor. I have done many repairs this way and have never had to re repair one of these.

Expansion

@ April 15, 2012 11:15 PM in Buried copper piping leaks

Build an expansion loop into the main and put a swing joint in the latteral. should solve most of your troubles ( works best if your leak is in the center of the main)

ERIC

@ April 15, 2012 11:10 PM in Polaris used for radiant heating & domestic hot water.

The original and any other piping configuration that does NOT use a heat exchanger will not pass codes. No mech inspector here would pass your system.

door switch

@ April 14, 2012 8:15 PM in furnace door switches

I just jam a pocket screwdriver into the gap - wedjing it closed.

wood stove tie in

@ April 8, 2012 8:51 PM in piping indoor wood boiler and gas boiler

Just install two tees in the return line to gas boiler above the pump and run the upstream tee to the inlet of the wood boiler and the other tee ( closest to the gas boiler pump ) to the wood boiler output line. If this is not a pressurized wood stove than you will need to install a heat exchanger between the gas boiler and the wood stove.

temperature

@ April 4, 2012 10:52 PM in Wise to Loop Hotwater Baseboard Heating to Garage?

The air temp must be maintained at least 2 degrees higher than the water temp or you won't be able to keep the humidity below 50%. What system are you using to control humidity.  Humidity levels above 50% inside a wooden structure will distroy your house in the winter months. Drywall and paint won't stop the humidity from getting to the wooden structure of the garage. You have to use a vapor barrier to do that.I wouldn't have a problem as long as it is a seperate loop and with a thermostat to control it.