R/T Performance
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Here is a link to the company site
http://www.titanheater.com/
http://www.titanheater.com/
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My thoughts on the overkill...YES, about $300 price difference from the "single bath" model to the "whole home"...I won't risk a bad name over catering to short-term budget..I tell them up front.master plumber mark said:The general feeling I am getting is it is better
to err on the side of overkill with a tankless heater
than to be left standing in a cold shower with
your monkey in your hand...
waiting for the hot water to arrive...
it that about correct???
If I ever sell them I certainly will oversize a system rather than undersize one.....
I dont need the greif.dealing with dis-satisfied customers....and if they dont like it,
they can calll somesone else....I doubt they can beat
my price anyway....even with the smaller unit....
I Got a call into my Takagi rep and I am gonna try
to haggle with them for about a 9-12 gallon
per minute unit.....
it really does not cost that much more to go big
and its basically an issue of wether you will lose efficinecy
with the bigger unit
but gain dependibality.....
jadnashua said:Everyone seems so concerned about standby losses...these are important, but a good tank in a temperate room keeps the delta T losses down when it has good insulation.
Cass said:The very best Model would be a between 1977-1980 and the size would be contunious 36-24-36
With no mother-in-law.
jadnashua said:I went with an indirect, since I had the boiler anyways...nominally 94% efficient.
And of course...using a Taco SR-501 for the priority (ok...maybe a 504 if you have only two other zones)jadnashua said:SuperStor Ultra with the smallest Buderus...so far, so good.
I did a lot of research on HE direct-vents and tankless a few months ago when I was first scoping my renovation. The most consistent criticism of tankless was the risk of no heat/inconsistent heat at low flow. In your opinion, is this overstated?GrumpyPlumber said:That alone wouldn't sell them...the avg water htr is 60-65% efficient...the tankless's get upwards of 84%...when running.
I have only seen one name with a noticeable problem, Bosch...I was startled by it's irratic temp changes for the first minute or two....luckily for me it was purchased by the customer. (I'm gunshy about pawning new nam4es on customers without experience orr research)jay_sfb said:I did a lot of research on HE direct-vents and tankless a few months ago when I was first scoping my renovation. The most consistent criticism of tankless was the risk of no heat/inconsistent heat at low flow. In your opinion, is this overstated?
If you have the budget for the best option for efficiency...go with a condensing boiler & DHW/indirect storage tank set-up.I also ran across the AO Smith Vertex PV. They claim 90% efficiency (versus 67% for their own Promax line). My plumber checked with his distributor, and the price is nearly double the next highest model. Still, I'm wondering if anyone has any experience with the Vertex, or if their claim is even valid.
Great discussion, BTW. I like the idea of tankless, but was discouraged when I learned about low flow performance, as well as the calculated savings vs an HE direct vent gas-fueld storage model (apparently, the total OPEX of the storage is still lower over the long term than tankless, especially when factoring in the unit and installation cost differences). This is why I am also interested in seeing the results of the "noble experiment"; it would be nice to have some hard, real-world numbers to point to for reference.
With thanks,
Jay
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