Double tankless install - Plumbing Zone

WestCoastPlumber · 01-09-2009, 10:46 PM

tankles and sump pit 019.jpg

tankles and sump pit 020.jpg

tankles and sump pit 015.jpg

Tankless picts here

will post stuff later..gotta eat dinner etc..

here are the water lines.

pzmember · 01-09-2009, 11:14 PM

looks good, i definitally like the powder coated casings on the rinnais. ive put a few of the newer ones and im kicking myself for using the old style in my house. oh well ill put one in in 20 years.

**Bill** · 01-09-2009, 11:41 PM

Looks good!

How do they do as far as cost per month vs old storage tank type?
What about electric consumption, is it less than the old style tanks?

uaplumber · 01-09-2009, 11:43 PM

Looks good. Galvanized gas lines?

**Bill** · 01-09-2009, 11:54 PM

Kind of strange, but I too see galvanized gas lines. Here they are black iron.

ROCKSTARPLUMBER · 01-10-2009, 12:21 AM

Dont see how its going to draw evenly from both units with the hot side tee offset that far. I always center mine, with evenly cut pieces in between so i get a dead even draw. You might have problems with the one on the right i would think.

WestCoastPlumber · 01-10-2009, 12:31 AM

Quote:

Originally Posted by uaplumber

Looks good. Galvanized gas lines?

Allowed here, you cannot use black steel outside.

WestCoastPlumber · 01-10-2009, 12:33 AM

Quote:

Originally Posted by ROCKSTARPLUMBER

Dont see how its going to draw evenly from both units with the hot side tee offset that far. I always center mine, with evenly cut pieces in between so i get a dead even draw. You might have problems with the one on the right i would think.

You need to understand how a tankless works to understand that this will not happen.

Everything flows perfect in this guys house.

Tankless · 01-10-2009, 12:34 AM

I don't see any pictures of the install...the linkl for for a blanket info page...no pics

Rockstar, even though I cannot see his install it doesn't matter. Tankless units in tandem or 3 or 4 or 5+ units tied together share the load. Say there is a 3 GPM draw, the units do not fire and produce 1.5 gpm each. The primary unit (switches every 24 hrs) takes the bulk of the load, THAN once it becomes more efficient to, it will light the secobnd unit. Unless it's a really high demand neither of these units will run at 100%. The ballancing of the piping is important to tanked non mechanical heaters...not tankless. Pwr consumption will.....err, this is West Coast's thread....Imma let him answer all your questions.

WestCoastPlumber · 01-10-2009, 12:36 AM

Quote:

Originally Posted by Bill

Looks good!

How do they do as far as cost per month vs old storage tank type?
What about electric consumption, is it less than the old style tanks?

Small amount of power, they are a bit less expensive. You get tax rebates from the feds and rebates from the gas company.

Main thing is space savings and endless hot water. This customer had remodeled his bathroom, the contractor installed a regular tank type 50 gallon water heater for a 4 bathroom house with big jacuzzi tub

He was able to use his tub. And I freed up space in his garage for his new motorcycle when he gets it.

01-09-2009, 10:46 PM	#1
WestCoastPlumber Plumber Manhattan Beach Join Date: Jun 2008 Location: Los Angeles (South Bay) Posts: 828 My Photos	Double tankless install tankles and sump pit 019.jpg tankles and sump pit 020.jpg tankles and sump pit 015.jpg Tankless picts here will post stuff later..gotta eat dinner etc.. here are the water lines. __________________ Robert Plumber Manhattan Beach, Plumber Hermosa Beach,Plumber Marina Del Rey, Plumber Redondo Beach, Tankless water heaters Los Angeles Tankless repair Los Angeles Last edited by WestCoastPlumber; 01-10-2009 at 12:50 AM..

01-09-2009, 11:41 PM	#3
Bill Moderator Join Date: Jun 2008 Location: I have no idea! Posts: 5,868 My Photos	Looks good! How do they do as far as cost per month vs old storage tank type? What about electric consumption, is it less than the old style tanks? __________________ Virginia Plumbing Codes Virginia Department of Licensing Ones intellect can often be summed up by his own words Everything in the known universe is governed by "Cause and Effect", there is no getting around it. Think about what you do before you do it.

01-09-2009, 11:43 PM	#4
uaplumber Plumbing Contractor Join Date: Jun 2008 Location: Westlock, Alberta, Canada Posts: 1,436 My Photos	Looks good. Galvanized gas lines? __________________ B&B Plumbing Inc http://www.westlockplumber.com Plumbing and Heating in Westlock, Alberta

01-09-2009, 11:54 PM	#5
Bill Moderator Join Date: Jun 2008 Location: I have no idea! Posts: 5,868 My Photos	Kind of strange, but I too see galvanized gas lines. Here they are black iron. __________________ Virginia Plumbing Codes Virginia Department of Licensing Ones intellect can often be summed up by his own words Everything in the known universe is governed by "Cause and Effect", there is no getting around it. Think about what you do before you do it.

01-10-2009, 12:21 AM	#6
ROCKSTARPLUMBER I aint CPV see in it? Join Date: Dec 2008 Location: Tallahassee Fl Posts: 4,647 My Photos	Dont see how its going to draw evenly from both units with the hot side tee offset that far. I always center mine, with evenly cut pieces in between so i get a dead even draw. You might have problems with the one on the right i would think. __________________ My Name Is Rockstarplumber, and I Am Second. Tallahassee Plumber Tallahassee Water line repair Tallahassee Tankless Water Heater Plumber Killearn Lakes Service Repair

01-09-2009, 11:14 PM	#2
pzmember Registered Member Join Date: Sep 2008 Posts: 383 My Photos	looks good, i definitally like the powder coated casings on the rinnais. ive put a few of the newer ones and im kicking myself for using the old style in my house. oh well ill put one in in 20 years.

01-10-2009, 12:34 AM	#9
Tankless Always Something Join Date: Jun 2008 Location: Santa Barbara / Ventura Posts: 1,347 My Photos	I don't see any pictures of the install...the linkl for for a blanket info page...no pics Rockstar, even though I cannot see his install it doesn't matter. Tankless units in tandem or 3 or 4 or 5+ units tied together share the load. Say there is a 3 GPM draw, the units do not fire and produce 1.5 gpm each. The primary unit (switches every 24 hrs) takes the bulk of the load, THAN once it becomes more efficient to, it will light the secobnd unit. Unless it's a really high demand neither of these units will run at 100%. The ballancing of the piping is important to tanked non mechanical heaters...not tankless. Pwr consumption will.....err, this is West Coast's thread....Imma let him answer all your questions.

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