Best Of
Re: Piping from scratch
Save yourself and the customer some $$. The old system was probably oversized. Have (or do) a heat loss calculation room x room.
Once you know the heat loss x room
- Pick the radiation that will heat the house at 180 deg water (you can go to a lower water temp with more radiation and save some fuel)
- determine the water flow in each zone (1 gpm will deliver 10,000 btu)
- Size the pipe by gpm 3/4=4gpm, 1" 8 gpm, 1 1/4 12gpm etc
- make piping layout and select circulators.
These are the basics. You can get in the weeds and design all kinds of systems.
Re: Antifreeze
you asked for our advice
You were given that advice
Yet you’re going to ignore it
It’s your equipment, your responsibility
pecmsg
Re: Ruud Monel Water Heater
i think that design became obsolete by the late 50's, i think it is more like 70-75.
mattmia2
Re: Black particles in water: Navien tankless water heater to blame?
You need to do the necessary research to determine that the problem is an inherent problem in the unit and identify the problem, and not the result of any of a host of other causes. It's called proof — and they aren't going to do it for you.
Re: My three worst jobs sites. What are yours?
Aw c'mn guys. Sewage treatment plants aren't bad. I've worked several in my day, and first place you get used to the smell. Second place, personal hygiene is number one. Never washed my hands as often again. Third place, if the operator is any good at all, the place is really pretty clean… and we were really big on confined space protocols.
Oh just one more thing. Don't go for a swim…
Re: Piping from scratch
Scrap the system and run new panel radiators . I would run a home run system (3/8" works here).
Big Ed_4
Re: Piping from scratch
panel radiators will be less expensive, cast iron radiators will be more comfortable. it is up to the preference of the owner.
mattmia2
Re: Oil Water Heater for Disabled Couple on Long Island
you can spend an extra $50/year on hot water for quite a while before you make up the cost difference between an electric and oil water heater, especially when you add in annual oil burner maintenance.
mattmia2