House #1 Hydronic Heating System, NTI Boiler, Weil Mclean DHW

Short video of a hydronic heating system that I designed and installed in a 2000sq.ft. slab on grade home.

Category:

Howto & Style

Tags:

• NTI
• Trinity
• New
• York
• Thermal
• DHW
• boiler
• hydronic
• heating
• plumbing
• cleaning
• construction
• installation
• maintenance
• repair
• water
• pex
• piping
• heater
• tankless
• weil
• mclean
• copper
• tank
• storage
• condensing
• pump
• grundfos
• brass
• housing
• building

[thundersticks]

@wrathchild11 it usually takes me longer to explain how to wire it than it would for me to actually wire it lately too.....

[thundersticks]

@dano415 isn't that the truth, I spend most of my winters repairing systems that were installed by other contractors.

[dano415]

@thundersticks It depends on the "Professional". A license doesn't mean much in hydronics.

[wrathchild11]

@manuelito489 all electrical 110V is done with BX cable..low voltage control wire looks really good and neat...completely within code...most plumbers are better at wiring a boiler than "sparkies" anyway.

[wrathchild11]

very nice!!

[tyjaco1]

@thundersticks oops my bad, just went and looked at the tank...it's an GSW envirosense power direct vent. Sorry, just telling you what i was told...never really looked at it before. looks like i'm gonna learn soon enough, lol

[thundersticks]

@tyjaco1 @tyjaco1 wow, I would be VERY interested in what kind of storage tank that you have that is 96% efficient with a secondary heat exchanger. What brand and model number heater are you using? The only unit on the market that I am aware of other than the NTI boilers that is above 95% efficient is the Navien on demand water heater that claims 98%.....but very clearly states in the warranty that space heating voids all warranty. What unit are you using? Alberta is not electric heat friendly!

[tyjaco1]

@thundersticks Thanks, our tank is 96% efficient and the pipe is only laid in the basement and garage. I only wanted it in the slab. Every where else in the house where there is tile I installed electric floor heating. Just wanted to take the bite out of the air.

[thundersticks]

@tyjaco1 if you set it up as an open system no expansion tank is required. Devise a float method to keep the system "full" as water evaporates. An open system is more succeptible to water acidity/alkalinity problems as there is constant new water added throughout the year. An "insant heater" is NOT a boiler. You can do whatever you like being the homeowner, me being a contractor I have to follow the rules and do things the best way I know how. Hope it works out well, show us a video when done!

[tyjaco1]

@thundersticks I have already laid pex pipe and suspended it in the slab so it is about 1" into the surface of the slab with 2' styrofoam insulation between the sand and the slab. I was told you can use your water heater and set it up as an "open system" and i know my tank is more than sufficient. All i need now are the pumps, valves, manifolds, expansion tank, and someone to set it up...lol. All i did was the dirty part of the job, just hoping I don't need to buy an expensive instant heater.