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Laars - MFTHW140 - $2200 Pump: Yes, installed(unknown type) Warranty: 5yr parts/10yr HE --- Lochinvar Knight - WHB110N - $3800-4200 Pump: Yes, ships separate(UPML 25-104) Warranty: 5yr parts/10yr HE(prorated till 15) --- US Boiler Aspen - ASPN-110 - $3800 Pump: No Warranty: 5yr...

What are the options for unions when using pex? ..lets say for a filter.. I can use a combo of these two, but is there a better way? https://www.supplyhouse.com/Webstone-H-40424W-1-Threaded-x-FNPT-Union-Full-Port-Ball-Valve-Lead-Free...

The vent will run along the joists a couple feet, run up a wall, then into the attic. That 1.5” vent is planned to handle the laundry and kitchen sink, as seen. It will also most likely pick up a floor drain and an unused condensate drain before going up the wall. Is the 1.5” pipe sizing and...

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Pictures: https://imgur.com/a/WkCc4AN I am under the IPC in PA. 1) Should I use a combo or a san tee for the vent (picture 1 vs 2)? Does it make any difference? 2) Having the downstream toilet wet vent is fine? I do not see any way to dry vent it without going horizontal for a little bit...

I plan to have 2x showers and 2x sinks connected to a single 2" vertical stack. A single shower and sink will be on their own 2" horizontal branch. I plan to connect each horizontal branch into the 2" vertical drain like this: From my understanding you are allowed 6 DFUs on a 2" horizontal...

Existing setup: https://imgur.com/a/JrSTYhI Old plan: The 2nd floor vanity and shower was was left basically unchanged. The 3 combos in a row are toilets and a vent. New plans: Option 1: Option 2: Option 2 allows for easy moving of the shower drain if the shower was ever updated(like...

Any recommendations on a nice PVC drain with a square/rectangle stainless screwable cap? I have a 3" stub out, slab is not poured yet. ..and what stainless closet flanges do you guys like the best?

Should you always deburr/chamfer PVC? What tools do you guys use for 1.5-4" pipe and should I complain if a plumber is not doing it(on a large job)?

Any reason why I should not drain a shower and sink into that double wye with a 2" inlet? Even though I have back to back toilets is it alright to have that wye be 3"?

I am completely redoing my plumbing for a remodel. The above picture is the existing main stack. The two toilets siphon water from each other, so I will be removing that double sanitary tee and correcting it with a double wye. That leaves no room for the sanitary tee below the toilets. I...

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1) Fire tube vs Water tube? Any notable advantages of one over the other? 2) If my boiler had 79k BTU output instead of the ~49k(estimated I need), is it fine to run a boiler at low fire using its turndown 24/7? 3) If my boiler BTU output is 49-79k BTUs and I am running at 120 degrees will an...