Print

[RSI]

It drips off the door because it is much colder than the rest of the firebox and condenses there first. Is there any insulation missing?

[hddmax66]

could the rope seal be bad to cause the problem? The bottom seal looks not to be the best seal compared to the rest of the door. I dont know if its the fact of being wet all the time.

[woodfuel]

RSI is right. Hot/cold contrast because damper opens up. If you are worried about rust at the base, caulk a cove joint at the front bottom to the concrete slab, if you have one, or caulk the whole perimeter.

[RSI]

Adding a draft blower would fix it if it is caused by the outside air condensing as it enters the firebox but I think it is more likely moisture that came out of the wood.

What does CB use for insulation in the door?

[hddmax66]

i dont exactly know. it says insulated cast iron door

[dwneast77]

I can't speak about the a-coil but my dealer strongly urged the 3-way zone valve at my furnace and I saw why really quick.  The first day I fired up my boiler and charged the lines I did not have the electrical set up at my furnace yet so I opend the zone valve to flow through the exchanger for the night until I could do he wiring.  My house climbed up over 80 degrees in the night.  Granted it was not cold outside that night but probably between 30 or 40 (this was back in Dec. 2008).  My system is an updraft but even a down draft would do the same, the hot air would just flow out the return.  If the heat has a way to rise, it will.

[the trailmaster]

Has anyone had a problem with a thermo valve in the new 2400 set up?  I'm dropping 10 degrees coming into the house from 50 feet away.  Any info would be appreciated.

[willieG]

Has anyone had a problem with a thermo valve in the new 2400 set up?  I'm dropping 10 degrees coming into the house from 50 feet away.  Any info would be appreciated.

10 degree drop in 50 feet...

very slow gpm

terrible insulation on underground pipes

bad equipment taking the readings

those are the three things that pop into my mind for your readings?

[the trailmaster]

Thank you for the info.   Use CB pex on under ground and insulated pipes behind the boiler.  I'm using 009 at the boiler.  A dealer suggested a possible defect in thermostat inside the thermo valve.   Any word  or has anyone have any insite on this     Thank you

[willieG]

A dealer suggested a possible defect in thermostat inside the thermo valve.   

this would maybe lead to slow GPM? when this water goes through yoru heat exchanger (and the heat exchanger is giving up heat, like when the room is calling for heat) is the temp swing from the inlet to the outlet pretty big or no?
this could be an incicator of low flow if the temp is huge?

[RSI]

Where is the temperature drop being measured? From the boiler to the house or at each end of the same pipe?

[the trailmaster]

My first temp gage is just beyond the thermo valve.  The second at the inside boiler after the heat exchange.  I was told that some thermo valves had the wrong stats. inside and are returning some of my hot water back to the outside boiler without making the full loop.  Should we be down 1 or 2 degrees coming if all things being equal?   I'm at a loss and my dealer is on vacation.

[muffin]

My first temp gage is just beyond the thermo valve.  The second at the inside boiler after the heat exchange.  I was told that some thermo valves had the wrong stats. inside and are returning some of my hot water back to the outside boiler without making the full loop.  Should we be down 1 or 2 degrees coming if all things being equal?   I'm at a loss and my dealer is on vacation.

If you are past the thermo valve and downstream past your boiler exchanger, why do you think it is the thermo valve?  How do you think you have low flow too?  Or are you saying that basically you are getting this huge delta across the heat exchanger so your flow rate must be bad?  Once again, someone needs to make a cheap flowmeter!

It was recommended to me to open a valve in your line somewhere (preferrably close to the return) and measure time to fill a 5 gal bucket.  Then calc your flow rate.  Not sure if you can do this.

[the trailmaster]

Thank you all for your info.  We are going to try another pump Thur. and see if more gpm helps.  I will report in.

[dwneast77]

Might consider adding another temp guage before your heat exchanger.  Still doesn't answer the "flow rate" question, but would tell you if the problem is between the house and boiler. 

How do you like the 2400???  And how long have you been running it?  I'm on 4th season with 2300.  Overall not bad, I have to watch bridging in times of high consumption (I run greenhouses along with my house) and I have had several small repairs and upgrades.  Recently a small leak in a bad corner weld and my air channel is not holding up well.  Looking at my options for fixing or replacing them or sending the unit back for factory repairs and remaining upgrades.