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The first floor zone in the main house will have 21’ of cast iron baseboard radiators with a 71.4sf of EDR and one six tube 20” high slender radiator at 72sf of EDR. The baseboard rads will have an added thermal mass of 315lbs of iron and 52.5lbs of water. The slender rad will have a thermal...

@Dana So I've begun to work through your list, Total EDR for apartment zone is, 151.9sf with a total of 221sq feet available for underfloor radiant. It would be 253 if I include the bathroom, but that would have subfloor and tile floor for the heat to radiate through. Total EDR for...

Thanks for all the good info, its hopeful to here that we may be able to set up a system that won't short cycle even though our boiler is oversized for the application. I'll be spending some time this week working on the calculations, the links you offered look like they will be really helpful...

So i'm about to disconnect my old Weil-McLain boiler and hook up a new Navien NCB 240 combo boiler which we've been using for DHW since January. I know, I've already been told elsewhere on here that the NCB 240 is overkill for the size of the house and may likely not work efficiently because...

Thanks for the tips, was not aware of the siphoning issue or the possibility of a crack in the tube. I'll go through this process tomorrow when I'm at the property to see what is going on.

I have a gerber toilet in one of my rental properties, it appears to be in good condition but I can hear it filling the tank periodically when it isn't even being used. I replaced the flapper thinking maybe it was leaking, still was filling periodically. I replaced the fill valve thinking...

Thnanks for the response Jim, I was thinking it must be something along those lines. I'm just now designing the heating system so i"m hoping that I'll get it installed before the issue with this becomes too frustrating.

Hey all, So let me describe my problem first and then I'll describe the specifics of my installation. The Problem: Over the past 2 weeks we have began experiencing the cold water sandwich for the first time since installation. It doesn't"t happen consistently, but when it does we often go from...

Didn't realize these things were that specialized. I've read the service bulletin on testing the pressure at the regulator and manifold. It doesn't seem that complicated, couldn't any reputable pipe fitter/plumber at least manage that part of it safely?

I get it. Thanks. Gonna have a plumber come take a look at it this week I guess, since it appears to be a problem above my pay grade.

I get that the knobs are adjusting mechanical aspects in the water and gas valves, but there are wires coming in from the flue sensor and another sensor that's inserted in the copper outlet from the heat exchanger. How do they factor in?

The flames do flicker orange at the tips at times, I did just clean the burner assembly per manufacturer service bulletin, but I would say they are only an inch to inch and a half high at the most. They do modulate slightly when adjusting the flow rate knob on the left. I also was wondering if...

just tested water temps, incoming is 42 degrees at kitchen sink after letting it run several minutes and it stops dropping. The hottest I can get it even turning the faucet down to 3/4 gpm is 105 degrees, that's a 63 degree rise. Is that the best we expect from this unit. I guess if in the...

That would explain why we noticed it over the past couple weeks, we just got our first cold snap, I didn't realize the incoming water temp would dive so low. Also thought the specs on this unit state a 90 degree rise at the lowest flow rate? Did I read that wrong or is it just inaccurate. I'll...

we have city water in Philadelphia, haven't noticed that it's particularly hard, don't get any mineral buildup on fixtures or shower head to speak of. But I can try rescaling again. I'll check out the link you posted first.

So about a week or two ago we started to notice that the hot water temp was a little low. I checked the two dials and adjusted them accordingly, turned the Flame up and the flow rate down as instructed in the manul. Nothing really changed. To give you an idea, we used to have to turn on the...

Thanks, I figured it was something like that. I've upgraded to low e double pane vinyl replacements. So would there be any reason that it would be undesirable on an interior wall if that worked better for my layout?

I'm remodeling the bathroom in my century old carriage house in Philadelphia. I'm looking for advice/rationale for where to locate the baseboard radiator. I'm planning to reuse the 38" Burnham baseboard radiator. The bathroom is roughly 70sf with the only exterior wall being the 10' side of the...