Tankless Water Heater
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Tankless Water HeaterPosted by Darren Farrell at June 01. 2006
Can anyone recommend a good tankless water heater? The tank would power one shower and two sinks. I have read mixed reviews of the Bosch AquaStar and cannot seem to find any reviews for the Noritz brand.
Which tanks are the best and most hassle free? What are the pitfalls to owning a tankless system? And can anyone recommend a good tankless water heater installation company in or near NYC?
Re: Tankless Water HeaterPosted by Nicole Herold at June 02. 2006
If you want to send me an email I'd be happy to share the research I just conducted during my own tankless water heater search.
Re: Tankless Water HeaterPosted by Debra Booth at June 02. 2006
So what is the problem with the Bosch Aquastar?
Re: Tankless Water HeaterPosted by Marvel Smith at June 02. 2006
nherold can you share some of your research here?
Re: Tankless Water HeaterPosted by Krista Atkins Nutter at June 02. 2006
Re: Tankless Water HeaterPosted by Mark Meyer at June 03. 2006
Ummm, knutter, not all tankless waterheaters are electric, and frankly electric water heaters are pretty awful. If you have access to propane or naturl gas then a tankless is quite a nice thing to have.
Re: Tankless Water HeaterPosted by sydney roberts at June 03. 2006
Gas tankless water heaters are far more efficient than electric. And they provide instant hot water. There are two possible catches: the flue and your gas line. It can be expensive to install the flue, so the best option is usually to install the heater on the exterior of your house. Don't worry, they have been doing this in Scandanavia for over a decade. Gas tankless water heaters use a lot of gas while they are firing. Sometimes, in an existing home the gas line is not of a large enough diameter to supply at this rate. Talk to your plumber about what you currently have and if it is sufficient.
Here in Georgia, the gas companies sometimes have large rebates for installing tankless systems. So check with your power suppliers to see if you can get a deal.
Re: Tankless Water HeaterPosted by Karen Pittman at June 03. 2006
I have been using the Rinnai Continuum (a gas tankless heater) for a couple of years now. It was installed on the inside, on an exterior wall in new construction, so it was super-easy to vent it to the outside. We have never had a problem with water availability, and have probably at some point run the dishwasher, washing machine, and two showers at the same time with no problems. Two people live in the house full-time, with one very frequent visitor. Our gas bills are cheap, never more than $22/mo (including cooking, but not heat).
Re: Tankless Water HeaterPosted by Nicole Herold at June 05. 2006
I just bought a Takagi TK-1S (LP) for mounting inside on an exterior wall. It only requires an elbow vent to the outside.
My research was very confusing. There are lots of stats out there contradicting one another. Most of them are posted on the product websites (Takagi, Bosch, Rinnai - these guys love to say their competitor's products aren't as good as theirs). I was going to go w/a Bosch 250SX, but when I spoke to the owner of the place where I ultimately bought it (DesignerPlumbing.com), he said that he has never had a problem w/Takagi, but he has w/Bosch. I believe he pushed me towards the Takagi because he's a super retailer (he sells a LOT) and could get me a good price on a higher gpm unit than the Bosch. My main concern was about the differences in warrantee from the Bosch to the Takagi (10 yrs. vs 7, I think), but the fact that this seller has never had a problem w/Takagi convinced me. Well, that and the fact that the Takagi USA headquarters is about 5 miles from my work.
Overall, most everyone who gets one seems to like it so I couldn't tell from reading a bazillin posts on a bunch of different sites which brand was better than the next. Preference seemed to be based in part on who the local plumber supported.
One thing that people said over and over again was about the temp rise. Those who live in frigid areas get a lower gpm than those in temperate zones because the unit has to heat the water up so much more. I live in So. Cal, so the temp rise wasn't as much of a concern. I just wanted to be able to run 2 showers or one shower and one dishwasher load at the same time.
It should have just arrived via UPS today so I can't say how well I like it. Hopefully we'll have lots of good things to say once the WH and the 70 gallon soaking tub are installed and in use.
Clarification Re: Tankless Water HeaterPosted by Krista Atkins Nutter at June 05. 2006
Re: Tankless Water HeaterPosted by Julie Brown at June 06. 2006
There are tankless water heaters intended to work with a tank of solar pre-heated water. I think that Rinnai makes one. However, then you are buying and providing room for both a tank and a tankless heater with the benefit of only slightly more flexibility than knutter's suggestion. Although natural gas is currently a cheaper source of fuel than electricity, it's not clear that that will always be the case.
Re: Tankless Water HeaterPosted by Eric Smith at March 13. 2007
Re: Tankless Water HeaterPosted by rose at December 11. 2012
Gas tankless water heaters, which use high-powered burners to quickly heat water as it runs through a heat exchanger, were 22 percent more energy efficient on average than the gas-fired storage-tank models in our tests