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Re: One year old Williamson-Thermoflo heat exchanger failure

I agree that a bad chimney or lack of draft usually shows up as a coked-up nozzle, burned retention head or blast tube, melted coupling, soot on the floor around the burner and soot-stained electrodes.

Don't assume that the MFGs are always right or know what they are doing because they don't.

Some of you may recall an Adams oil fired furnace I installed about 7 years ago that I posted about.

The HX was NG on the initial start up because the factory "forgot" to weld a steel plate in the hX.

Another time it was a Miller oil fired furnace for a trailer, again brand new with a bad spot in one of the welds.

Williamson at the very least should cover the cost of and supply a new HX.

It's only going to cost them $200 or so + shipping

Lawsuits cost more than that.

I would make them eat it.

I would also tell the supply house to put pressure on Williamson or they will lose your business.

EBEBRATT-Ed

2

Re: One year old Williamson-Thermoflo heat exchanger failure

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The flame retention head and the entire burner still looks like brand new. In my experience a draft issue usually results in a flame retention head that's either warped or cracked. At the minimum I would expect it to be fouled up with carbon if the chimney was a problem.

SuperTech

1

Re: Seeking Engineer for Off-Grid Religious Facility Heating in the Mountain States

If PV with battery backup is allowed then a lot more options are on the table.

DCContrarian

1

Re: Replumbing: Solder or Threads for Ball Valves

Galvanized in cold water is still in usable shape after 60 or 70 years, 100 years out of soldered copper is reasonable. I'm not convinced about the o-rings in propress either although it is crimped in such a way that there is a lot less reliance on it remaining pliable.

mattmia2

2

Re: Utica now offering 12 year warranties, longest in industry

https://forum.heatinghelp.com/discussion/comment/1845510#Comment_1845510

The steam comes out sideways across the surface of the water rather than straight up off the surface so it is easier for it to pick up the water droplets that emerge with the steam. With a top outlet boiler physics are more in your favor for keeping the water in the boiler and separating the water from the steam.

mattmia2

2

Re: Increase ΔT to 15K with ASHP

To elaborate further:

Let's say that to meet your heating load your emitters need to have an average temperature of 110F. You can meet that by sending water at 115F and returning at 105F, or sending at 120F and returning at 100F, or sending at 125F and returning at 95F. It the first case the delta will be 10F, the second 20F, the third 30F. Since the BTU output is the same in every case the flow will be half the first in the second case, and one third in the third case.

While the BTU output is the same, the COP will be lower in the second and third cases because the delivered water temperature will be higher. The total energy usage will be lowest in the first case, with the smallest delta.

DCContrarian

1