Best Of
Re: Can I rough plumb a double vanity like this?
Venting needs to be 6" above the flood rim level before going horizontal.
I also dont get the 90s on the ends…
Yes the Tee Wye on the vent is upside down.
kcopp
Can I rough plumb a double vanity like this?
Many have been so helpful with my bigger discussion on my master bath plumbing, but now a quick question.. didn't want to bury it in the other thread since it can stand alone…
I have a need to put the main drain of a double vanity TOWARD (but not close enough to freeze or anything) an exterior wall. Could I plumb it similar to attached? I'd add a clean out JIC as the line still goes under the floor for about 7 feet before it ties into the 4" main stack.
Can I plumb it like this rather than the traditional double waste T? These are 1.5" PVC waste/vents to be clear.
THANK YOU!
Javelin
Re: Rinnai Cycling on and off
even know it has been flushed for 3 hours, is it possible that it is overheating? Still yet, go 8th performance data and watch #11. That is the hex temp.. then compare to #2 which is the outlet temp. Should be about 20 degrees difference. If #2 isnt getting to the set temp but overheating on #11 then replace the bypass valve. You can learn to get into performance data by the tech sheet in the pouch on the backside of the cover
hilltown
Re: How to maintain boiler (oil) after removing coil and adding electric water heater?
I understand that shut off is a bad idea.
I don't have that understanding
PS: I agree completely with your plumber, it is so nice to have those systems separate. If you really want to reduce the operating cost, consider a heat pump water heater and look for state and/or utility incentives
Re: Two pipe vapor system with vapor stat: to cycle or not to cycle?
Doesn't make sense to me that at 11oz you get a 3 :18min run time and at 12oz it will not cycle on pressure.
Re: Air to Water Heat Pumps
One thing to keep in mind, you can always make your own power for AWHP, can't do that with oil or gas.
Utilities have to be careful charging that much for power. At $0.33, PV has a pretty quick ROI even just to offset regular use.
Kaos
Re: Need more consistent domestic hot water
the key to combi or tankless performance is jeeping the HX descaled. Using the service valves make this an easy task
Its the quality and amount of water that leads to scaling and performance issues. Don’t blame that on the equipment
Phosphate dosers are used in Europe to help eliminate some scaling problems. Various treatment options for hard water are available .
hot_rod
Re: Adding a Radiator on a Gravity System in the Basement
With the larger commercial stuff, they get more push back from maintenance people and facility operators than from homeowners that are not knowledgeable. (not the homeowner's fault) so the homeowners get bullied into replacement.
Replacements are good but I fixed a lot of old stuff and kept it running for years.
It is kind of sad when I think of all the good people I worked with over the years that are gone or retired. Worked with some really smart younger guys that are still working but there are fewer and fewer of them.
I blame the schools for this. For the last 20 years (maybe longer ) they have been talking about fewer and fewer good people in the trades.
When I go to code update classes (which I still do don't know why) the average age of plumbers & electricians etc was like 56 years old……and that was 10 years ago.
Most of the high schools and Jr highs ditched all there shop programs years ago
There are still 2 high schools in my area that teach trade stuff and 1 community college that does but that is about it. Kids from other towns are out of luck
Used to teach at the union hall for 5-6 years but gave up. I was unhappy with the students. Its tough. They work all day and then have to go to class at night. I get it. I did it and so did many people.
They want easy answers. If they can't google it then it doesnt exist. Cell phones are great but they create dumb technicians.
Re: Normal boiler therm usage?
@zallomallo You don't have a couple of small drafts to fix, you have a whole bunch of them. Insulating is not the same as air sealing, you need to actively stop air from blowing through your house and installing a bunch of fluffy insulation will not do anything. Also if air is flowing through the insulation, its R value drops dramatically, so you have to get the air sealing done first before any insulation projects.
What you want is to get somebody that does blower directed air sealing. They usually have the equipment and expertise with these older buildings and know where to look for leaks.
You can also DIY with a budget thermal camera and a box fan. You put the box fan into one of your main floor windows blowing out and turn it on. You can than go around the house with the thermal camera to see where there are cold spots. You want to plug all those holes with either canned foam or pieces of rigid insulation sealed in place with foam. Seeing how much energy you use, you probably won't even need a thermal camera as you'll be able to feel the drafts. Make sure to turn off your boiler before you do any of this to avoid revers drafting it.
Typical trouble areas in these older houses are rim joist area of the main floor, leaky windows and framing cavities that are open to the attic.
For example my uninsulated stone basement was close to freezing even with the boiler and pipes running through it. Replaced the 100 year old single pane windows, air sealed the rim joist area and under the outside doors, fixed the brass weather stripping on the outside door and place now sits around 60F. I can now actually use it as a workshop year around.
Kaos
Re: Air leak in oil line
@EdTheHeaterman Chances are that all they need to do is learn how to flare tubing.
Why change a pump and run a return if it worked before??
Just to make more money? Because they are sloppy mechanics.
Reminds me of an oil article in a oil heating magazine. Written by Bill Axtman who used to teach at the community college I graduated from.
He later was a big wheel with the American Boiler MFG association.
He said words to this effect "Most burners don't run because the oil can't get from the tank to the burner"
That was 51 years ago. Some things never change