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Re: Oversized overtall chimney?
Strongly disagree that a chimney can't be oversized. draft is caused by the temp difference of heated air versus combustion air.
You go to a cabin on a cold wet damp day. You have the door open, and you try and light the fireplace and its back drafting.
Nothing to do with MU air you have the door open.
You get the newspaper and kindling going and it starts to draft because the chimney is warming up. the bigger the chimney the more heat it takes to get going.
How many gas fired atmospherics have been ripped out and the existing gas fired water heater is left in the chimney with the boiler replaced by a MOD CON. Then the chimney may be to large for the water heater and you have to comply with the 7X rule.
So of course chimneys can be too big.
Re: Oversized overtall chimney?
Guys,,, I really don't think the problem is a lack of combustion air… He's got a whacking great chimney there and is trying to find ways to reduce the amount of air going up it. I have seen a chimney that size develop enough draught to break a four foot a square piece of quarter inch plywood and try to such it up the chimney on a cold day with normal room temperature indoors.
If he really wants to reduce that draught he's going to have to drop a liner in there, sized to the appliance, and seal the space around the liner in the existing flue. That's going to cost, and other than the feel good of not having so much draught up the chimney it won't save enough on heating costs to make it worth the effort.
But folks, from the sound of it — don't worry about not having enough combustion air. That's not the problem.
Re: Help with Goodman GSXC16 Error code 04
that sounds like a bad neutral. it could cause the voltage of the control xfmr in the furnace to drop but the 240 v motors wouldn't cause it to drop. i suppose it could be one of the secondary lines was broken on the power system so it wasn't sharing load over the transformers
mattmia2
Re: GoldLine CM_50 solar control system
Unless there is reason to remove the collectors now, you might want to leave them and just remove the indoor parts. Leave the pipes and sensor wire to them cut with enough stub-out left so a future owner could reconnect (after pressure testing). Or just convince the owner to put it back in working order.
You might want also to take a hard look at the gas water heater's pressure relief valve as it appears to have a corrugated pipe attached. You want to make sure this terminates properly (i.e., not plugged, going uphill, or draining where it would not be noticed… and conforming to other code requirements.)
Re: Refurbished radiator making bird noises. Not vent?
Just asking — so often we hear of people running steam at a few pounds and wondering why it's noisy…
Re: Oversized overtall chimney?
That's because they won't alarm until 70 PPM is reached and exceeded for 3-4 hours!
Get non-UL approved Low Level CO Detectors that will alarm at 15 PPM
pecmsg
Re: Need some advice for a vintage Peerless radiator valve hookup
an lesson 2: that spud has to come out anyway, since it is actually half of the union connecting the radiator to the valve. The other half is/was on the valve, which I suspect is long gone. A new radiator valve will have the matching spud with it, and that gets threaded back into the radiator.
Re: Need some advice for a vintage Peerless radiator valve hookup
That brass spud can be carefully cut and caped out. You rarely have to remove them bushing unless you cut too deep in to the thread. As Mattmia said, this is plumbing 101 stuff. Mad Dog
Re: Need some advice for a vintage Peerless radiator valve hookup
You have to remove the spud and replace it with the spud that comes with the new valve. If your plumber doesn't know how to do that without breaking the radiator, find a better plumber.
mattmia2
Re: Miracle Iron Holland Furnace
it is a classic
Value
$0
costs more for asbestos removal and then the weight then it’s worth!
pecmsg