JHZR2
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Im paying $1.35 total (gas, distribution, etc) per therm in NJ.
JMH
automation of gas water heaters
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JMH
Wrong.
Pressure balance faucets are required by all plumbing codes and have been for over 10 years. I don't think that any major faucet manufacturer makes an old style (non-pressure balanced) faucet anymore. If you install one and there is no water from the hot or cold side, you get no water out of the faucet.
Also, like I said earlier, these 5-7 GPM instantaneous water heaters are good for an average residential installation. I'd say if you have a 5 bedroom, 5 bath home with 7 people living in it, you need 2 of them.
But you would need three 50 gallon electric heaters or 2 gas fired tank type heaters.
I don't want a water heater that I have to use 5 galons a minute to get any at all. What a wasteful peice of trash. And our stupid goverment is giving tax credits in the name of energy conservation? Maybe they should be banned.
JHZR2
Staff member
I dont think you need to use 5 gal/min to get hot water.
From what Ive seen, the minimum flow is 0.5-.75gal/min. Probably to wash hands or maybe even dishes there would posibly be an issue, but I cant imagine anything else would be an issue. Perhaps a very small electric water heater (5-10 gallon type), set very low would be very high efficiency and take care of all issues.
Just a guess though.
JMH
From what Ive seen, the minimum flow is 0.5-.75gal/min. Probably to wash hands or maybe even dishes there would posibly be an issue, but I cant imagine anything else would be an issue. Perhaps a very small electric water heater (5-10 gallon type), set very low would be very high efficiency and take care of all issues.
Just a guess though.
JMH
What?
The MAXIMUM FLOW IT WILL ALLOW is 5-7 GPM, based on your water pressure.
It's simple math folks. These things have been installed in houses that formerly had tank-type water heaters, whether they were electric or gas fired. The monthly utility bills have decreased a minimum of $10. The homeowners are happy.
The gas company nor any plumber/gas fitter worth hiring is not going to install one of these in a house where it flat out won't work.
In addition to them saving fuel, they also save a small amount of water. Water will be our next resouce that skyrockets in price.
JHZR2
Staff member
I had read that the tankless ones actually caused a waste in water, as typically the faucet had to be run a bit longer before correct temperature hot water was produced, as compared to the tank type heaters...
Supposedly this phenomenon was the worst in showers.
Dont know how much use it ever actually amounted to in reality.
JMH
Supposedly this phenomenon was the worst in showers.
Dont know how much use it ever actually amounted to in reality.
JMH
I don't think much. The newest tankless actually deliver heated water just as quickly. It's the length of your pipe run that will determine how long you wait, not what type of system.
My hot water pipes are all wrapped in foam insulation (even in the walls). To reduce water consumption when you are waiting the water to get hot, I'm eventually installing a circulation pump. This pump is on a timer that activate during the peak usage times and allow you to have hot water at the faucet/shower etc. immedietly. It's about $200, so payback will be determined by what you pay for water.
The additional load on the electric and gas is minimal because of the timer feature.
Nothing like your post getting
My hot water pipes are all wrapped in foam insulation (even in the walls). To reduce water consumption when you are waiting the water to get hot, I'm eventually installing a circulation pump. This pump is on a timer that activate during the peak usage times and allow you to have hot water at the faucet/shower etc. immedietly. It's about $200, so payback will be determined by what you pay for water.
The additional load on the electric and gas is minimal because of the timer feature.
Nothing like your post getting
In Stonington, CT, I pay $9.95 per month (customer service fee) just to be connected to the natural gas line. This alone offsets any savings from an energy efficient electric heater, if that was the only appliance I need gas for. However, I wanted a gas range in my new house. Since I'm already biting the bullet, I went with a gas dryer and gas water heater to reduce my bill.
I did run some numbers of tank vs tankless gas heaters and tankless did have a lower life cost, but that was based on the assumption that I would have to replace the tank model after 10 years, whereas the tankless life expectancy assumption was 20 years.
Between the 3 appliances, I use 16-18 therms per month, roughly $40.
JMH, your min. flow rates are accurate.
I did run some numbers of tank vs tankless gas heaters and tankless did have a lower life cost, but that was based on the assumption that I would have to replace the tank model after 10 years, whereas the tankless life expectancy assumption was 20 years.
Between the 3 appliances, I use 16-18 therms per month, roughly $40.
JMH, your min. flow rates are accurate.
i went with a ng bosch tankless a few years back after talking to a few different people that had them. i was skeptical at first but i dont regret it at all now. the savings were significant from my monthly bills compared to the previous year and we added another child in the mix.. maybe a new tank would have caused similiar savings but i dont want to drain the tank or mess with it if i dont have to.
since friends and several family members have seen and converted after there heaters have died.. water delivery is the same and everyone can get a turn to take there bath or shower and wash the dishes.
typical water heater life in my area is around 7yrs with little or no mtce. my bosch has a 20yr warranty when professionally installed. so for me its been good and there is no mtce or draining or rusting out.. just keep the cobwebs of it and go.. i guess a couple or small family could save much more even. i wont go back to that big tank..
since friends and several family members have seen and converted after there heaters have died.. water delivery is the same and everyone can get a turn to take there bath or shower and wash the dishes.
typical water heater life in my area is around 7yrs with little or no mtce. my bosch has a 20yr warranty when professionally installed. so for me its been good and there is no mtce or draining or rusting out.. just keep the cobwebs of it and go.. i guess a couple or small family could save much more even. i wont go back to that big tank..
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