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Re: Peerless Install
Yeah, I think you're right. It seems to be something with the appliance. The barometric was kind of a Hail Mary... thinking that excessive draft was causing impingement or something. I'll try calling Peerless. Also reached out to EzzyT today. He'll hopefully be able to come take a look when his schedule permits.

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Re: Transformer/ pump relay combo
The relay I indicated above is rated 40VA. however I always add a Smoke Keeper
Here is the relay comparison from the Grundfos to the Fan Center. If you can read wiring diagrams you will see that they are identical as to function.

https://www.supplyhouse.com/DiversiTech-D-90113-Fan-Center-DPDT-Relay-120V
Just mount the relay on a square box.
This is the Smoke Keeper I referred to above. It keeps the factory installed smoke inside the transformer.

You keep referring to putting components into a box of some type. I wonder if you can take a picture of the box you have that you want to put this stuff into?
Here is the relay comparison from the Grundfos to the Fan Center. If you can read wiring diagrams you will see that they are identical as to function.

https://www.supplyhouse.com/DiversiTech-D-90113-Fan-Center-DPDT-Relay-120V
Just mount the relay on a square box.
This is the Smoke Keeper I referred to above. It keeps the factory installed smoke inside the transformer.

You keep referring to putting components into a box of some type. I wonder if you can take a picture of the box you have that you want to put this stuff into?
Re: Does anyone know what this gauge is on oil burning furnace?
Hello and good afternoon Mr. Miller,
It is a one way check valve with a pressure gauge and Shraeder fitting to prime the oil feeding system.
If you want to treat your oil tank you can visit Tractor Supply Company, Farm and Fleet, Menards, the local farm co-op store or a truck stop in your area and buy a jug of HEET or 9-1-1 to treat your heating oil.
Leon
It is a one way check valve with a pressure gauge and Shraeder fitting to prime the oil feeding system.
If you want to treat your oil tank you can visit Tractor Supply Company, Farm and Fleet, Menards, the local farm co-op store or a truck stop in your area and buy a jug of HEET or 9-1-1 to treat your heating oil.
Leon

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Re: a way to get the return water hotter?
while i dont understand it all, if the water is leaving the heater several feet down and showing 120* on the gauge, im not sure how its a heater issue. to me the loss is in the floor. ive yet to understand head loss though. the heater being 199,999BTU that can supply 6-8 showers, you'd think that can have any amount thrown at it and be fine. my house water pressure though is 70psi so thats a big difference from 13psi on the pump. wouldnt more psi and a bigger pump help out?
Correct - water is leaving the heater at 120F. The issue is that you want ~3-4 GPM and you're not getting that because the tankless is too restrictive for that pump to flow that rate. You're likely getting <1GPM through the floor. The tankless is not undersized, quite the opposite. The issue is you're not getting enough flow because this appliance wasn't designed to be used like this and the set up isn't sufficient to address this mistake. Right now, you have a minivan with bald tires and 800HP.
Re: a way to get the return water hotter?
Physics is such a nuisance. Your delta T and flow determine -- very exactly -- how many BTUh you are putting into the slab. The slab characteristics determine, then, whether its temperature will rise, stay the same, or fall.
You have two choices. First, increase the flow rate. That will give you a smaller delta T and, for the same source temperature, a higher overall slab temperature (eventually) -- provided, of course, that your boiler can produce enough power. Second, reduce the heat loss from the slab.
You have two choices. First, increase the flow rate. That will give you a smaller delta T and, for the same source temperature, a higher overall slab temperature (eventually) -- provided, of course, that your boiler can produce enough power. Second, reduce the heat loss from the slab.
Re: New Main Vents
I had a plumber master vent the risers. They taped the riser pipe before the shutoff valve of the radiator with a Gorton #2. This way the entire riser vents quickly.

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Re: How to replace a 2" pipe leaking between two fixed t's
There are perfectly round small holes that seem to have been plugged and were fine until they were subjected to an over fill of the boiler. Very strange. Definitely not corrosion. I have to check again but I do not think there is any play even to get a pair of flanges. Hmm did not consider 2 pair. That would leave enough space to get the ends in. Also means $200 of fittings. Beginning to think copper with slip coupling
will be the cheapest.
will be the cheapest.
Re: Boiler gauge
Please post some pictures close up and farther away so we can get a better idea of what you have.
If you have a steam boiler? And from your description you probably do.
If this is your first experience with Steam? Than those noises you are hearing are common.
If you have a steam boiler? And from your description you probably do.
If this is your first experience with Steam? Than those noises you are hearing are common.

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