I have an appointment with EnWise in a few weeks about their tankless water heater to replace my existing gas one. Does anybody know if these things are any good, whether they work as promised and whether they cost less to operate? Thanks in advance.
Tankless water heater
- Thread starter Worf
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i havve a friend who is a plumber, he swears by them.. endless hot water, cut his gas bill in half during the summer when you aren't heating the house.. he says you will get your money back in 3-4 yrs easily..
22 years later and water still boils instantly on the concrete fill in chernobyl.
so, yeah, i could see how they've had the technology for years.
so, yeah, i could see how they've had the technology for years.
The key is how many gallons per minute (GPM) of water at a certain temperature they can supply.
Most will handle one person showering, but if anything else is running (dishwasher, washer, another shower), you're going to get cold.
Some have found that if the entering water temperature is too cold(like in the winter), they need to use a holding tank where the water can come up to room temperature before it enters the water heater.
Most will handle one person showering, but if anything else is running (dishwasher, washer, another shower), you're going to get cold.
Some have found that if the entering water temperature is too cold(like in the winter), they need to use a holding tank where the water can come up to room temperature before it enters the water heater.
Rub:
Just curious, what did you base your numbers on?
I ask because if you use a lot of hot water, I can see them not being as efficient because you are heating the water a lot. Where if you use very little hot water, you're paying to heat water that you rarely use......
Just curious, what did you base your numbers on?
I ask because if you use a lot of hot water, I can see them not being as efficient because you are heating the water a lot. Where if you use very little hot water, you're paying to heat water that you rarely use......
The October 2008 issue of Consumers Reports has a 2-page report (p. 28-29) on Tankless Water Heaters, with the pluses and minuses all discussed. Basically they conclude that there are lots of upfront costs and a long payback period, though such units are advantageous if your household features infrequent but long use, such as back-to-back showers. All the data and models refer to the U.S. though......
According to their calculations some models may take 22 years to break even factoring in the extra upfront cost of the unit and installation. More than their lifespan.
Are you committed to 16-22 years at your residence according to CR?
I'd stick with the tried and true gas hot water tank if I were you.
http://www.consumerreports.org/cro/...eaters/overview/tankless-water-heaters-ov.htm
Are you committed to 16-22 years at your residence according to CR?
I'd stick with the tried and true gas hot water tank if I were you.
http://www.consumerreports.org/cro/...eaters/overview/tankless-water-heaters-ov.htm
Apparently there is(was) a partial Gov't rebate on them, my brother had one installed.
http://www.homeperformance.com/en/library/water_heater_grants.html
http://www.homeperformance.com/en/library/water_heater_grants.html
dajodo2 said:
Problem is: if you don't have gas service running to your house a gas water heater could get pricey
I'd like to know how they reached their payback/years numbers. I looked at some for a customer and they were about $1000.00 to replace a $400.00 water heater. So just loose numbers indicate a value of $600.00 to make up.
Now with the constant rising price of electricity, and the subsequent debt reclaiming that is going on, I can't see it taking 22 yrs to make up $600.00 as a regular water heater heats water 24/7 and even if you don't use the water, it is still heating and cooling and heating and cooling. Even really well insulated water heaters dissipate heat.....
For eg: I haven't used any hot water today but I can bet that if I had put an ammeter on my HWH power line I would have recorded some power usage. That power usage is 100% waste......
tboy said:Problem is: if you don't have gas service running to your house a gas water heater could get pricey
I'd like to know how they reached their payback/years numbers. I looked at some for a customer and they were about $1000.00 to replace a $400.00 water heater. So just loose numbers indicate a value of $600.00 to make up.
$600 plus the extra cost of reworking the plumbing lines.
dajodo2 said:
well, if its a standing pilot HWH, most of the heat goes up the flue, infact the flue would vent heat from the building as well
High efficiency, well, thats another story....
Hmmmm...lots of replies. Much appreciated, which means I have some research to do. The flyer did say I can get $500 in rebates after a home energy audit. I didn't get any prices on the phone, but I am sure they will give me that when they come over. I did take a look at some models on the web. The one pictured in the flyer is Rinnai. I don't know much about them, so they looked as good as any other ones. They say installation is free, and also removal of the old one.
I usually put all costs in a worksheet to figure out the payback period anyway. A 3-5 year breakeven would be okay for me. Anything greater and who know, I may not be around.
I usually put all costs in a worksheet to figure out the payback period anyway. A 3-5 year breakeven would be okay for me. Anything greater and who know, I may not be around.
1 yr warranty? That's ridiculous.....I know SOME things only come with 1 yr but on something that theoretically should last 10 - 20 yrs, that's fucked.....
rubmeister100 said:
i think the water system we have in the GTA is shit to begin with..the particulates might be the problem. Europeans don't put floride in the water
..i figure the Tankless is the same principle as a resturant Espresso machine.
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