Best Of
Re: Any plumbers good at small bathroom layout?
I have a pocket door in the beach house. Not an issue
pecmsg
Re: Frozen EVAP coil
Why does the coil require cleaning is the big question. That's not normal. That indicates poor air filtration, dirty ductwork, possibly high static pressure. Why has so many parts been replaced on this system? It sounds like the parts cannot has been fired at it but it still doesn't work.
In order to effectively help you we need static pressure measurements, saturation temperature measurements, indoor wet bulb, outdoor dry bulb temperature measurements. You know, the information a professional relies upon to diagnose a system properly. There's no reason so many parts should have been replaced and you still have a problem.
Re: Frozen EVAP coil
Airflow readings and psychrometer readings (dry/wet bulb, humidity, dew point) for supply/return would help.
Re: Oversized overtall chimney?
Quite the contrary, there is more than enough combustion air. That house is so leaky that there is more than enough combustion air. When the chimney starts to draft to its capacity, the air rushes into that boiler room and chimney from all over the home. installing a Fan-in-a-Can will only add more combustion air to the boiler room, it will not throttle the exhaust out the chimney. As a first step, sealing off the boiler room will accomplish the desired result. That may be easier said than done in that home. I would think that plugging off the chimney, and venting with a fan that can be adjusted to match the combustion air needs of the boiler as it is currently operating is a better use of that money. Finally a Combustion Air Inlet ducted to the boiler room would finish off the job, No need for motorized inlet and motorized exhaust. One motor should be enough.
Next step is to start the sealing up process, caulk, windows, insulation, and all things related to sealing up the conditioned space so those drafts stop altogether. Without this step, a windy winter day will have the same amount of draft thru the home as any chimney can cause.
Re: Oversized overtall chimney?
Hi, Two things come to mind that could work together to help. One is the makeup air @mattmia2 mentioned. The other is to enclose the boiler so it does not draw on indoor air. This would mean walling it off, or somehow enclosing it. No doubt a blower door test of the house could help with the drafty room also.
Yours, Larry
Re: compressor
If it's not doing anything I'd expect zero current.
If it's drawing current and not starting, someone should hear and feel that.
I'm still betting bad / melted plug on the side of the compressor.
ChrisJ
Re: Oversized overtall chimney?
How did it go from 480K to 225K? Was gas pressure adjusted, or burners removed?
HVACNUT
Re: Oversized overtall chimney?
If the boiler was starving for air, wouldn't there be a lack of draft?
The chimney is pulling air from the same space as the boiler, no? Wouldn't the draft absolutely have to increase when the boiler is running due to hot air being produced?
I'm very confused,
ChrisJ