 | ||||
| ||||
| | ||||
| ||||
| Moderated by: Admin |
|
||||||||||||||
| efficientcy | Rate Topic |
| Author | Post |
|---|
| Posted: Sat May 10th, 2008 01:03 pm |
|
1st Post |
|
putz Member 
|
I NOW HAVE 2-40 GAL.GAS TANKS IN PARALLEL THAT NEED TO BE REPLACED. WOULD IT BE MORE EFFICIENT TO HAVE 1-75GAL.HIGH DEMAND TANK.I AM LOOKING AT THE GAS USED TO HEAT UP 1 LARGE TANK RATHER THAN 2 SMALLER ONES EVERY TIME I USE THE HOT WATER.ALSO IT SEEMS TO ME THAT WHEN THE TANKS ARE THIS LARGE THE R-VALUE OF INSULATION IS NOT AS GREAT ,AND SOME DO NOT HAVE ALL THE FEATURES AS A 40 GAL. TANK. I BELEIVE THAT COST OF PURCHASE EITHER WAY IS CLOSE. Last edited on Sun May 11th, 2008 08:31 pm by putz |
||||||||||||||
| |||||||||||||||
| Posted: Sat May 10th, 2008 03:03 pm |
|
2nd Post |
|
energyexpert Member
|
Are these gas or electric? David
|
|||||||||||||
| ||||||||||||||
| Posted: Sat May 10th, 2008 07:38 pm |
|
3rd Post |
|
putz Member
|
2- 40 gal, gas
|
||||||||||||||
| |||||||||||||||
| Posted: Sun May 18th, 2008 01:57 pm |
|
4th Post |
|
putz Member
|
DID I ASK A QUESTION THAT EVEN THE EXPERTS CANNOT ANSWER?
|
|||||||||||||
| ||||||||||||||
| Posted: Sun May 18th, 2008 04:34 pm |
|
5th Post |
|
elenano Member
|
Not really. I'd guess David just got sidetracked, but since he had picked up your post, I was going to leave it to him. You might consider getting two smaller tanks and running them in series. If you search on that term here, you'll find some interesting posts. Aside from the issues you mention, there are others of cost and space for the heaters. Two skinnier ones might fit better than one big one and they'll certainly cost a whole lot less up front. You'll find that your 75 is going to cost hundreds of dollars more than a couple of 40s. But if you really use a lot of hot water, such as for radiant heating plus water heating, there are condensing gas heaters out there that have efficiency in the 90s, as compared to the 60s for typical heaters. They also cost many hundreds of dollars more. Just depends on your needs. Randy Schuyler
|
||||||||||||||
| |||||||||||||||
| Posted: Sun May 18th, 2008 04:44 pm |
|
6th Post |
|
eleent Member
|
Hello: Sorry, it's been a bit busy. In general, I prefer two tanks, piped in series rather than parallel; but only if you need that many gallons. In other posts I've described "structured plumbing", "shower heat exchangers", "tempering tanks" and "solar attic" as ways of being more efficient or bringing in more energy. These measures can dramatically reduce the need for more storage. The benefit of two tanks is that only one usually fails at a time and if plumbed right, the leaker can be bypassed while waiting for a sale on a good heater  Series plumbing works to give you more hot water than paralles if the added flow restriction is not a problem. Usually it isn't. This works by eliminating the need to balance flows between tanks, also by giving you about 3/4 of the volume of one tank and the entire volume of the other.Yours, Larry ps. I should add that smaller heaters really are easier on the back. Last edited on Sun May 18th, 2008 04:49 pm by eleent |
|||||||||||||
| ||||||||||||||
| Posted: Tue May 20th, 2008 10:44 pm |
|
7th Post |
|
putz Member
|
I HAVE 4 BATHROOMS IN MY HOUSE . 1 IN A BASEMENT,1 ON TNE FIRST FLOOR AND TWO ON THE SECOND FLOOR THAT GET USED FOR SHOWERS AND BATHS.I USE LOW FLOW SHOWER HEADS. I HAVE BEEN MONITERING MY HOT WATER FOR SHOWERS(2) BY RECORDING HOW MUCH IS USED THROUGH MY WATER SOFTNER.AVERAGING ABOUT 25 GALS EACH MORNING.NOW I KNOW SOME OF THIS IS COLD WATER ALSO. THE 2-40 GAL.UNITS WERE THERE WHEN I BOUGHT THIS HOUSE.IT SEEMS TO ME THAT A 50 GAL. TANK WOULD BE ENOUGH,WHAT DO YOU THINK?I FORGOT TO MENTION A WHIRL-POOL TUB IN ONE OF THE UPSTAIRS BATHROOM BUT IT IS RARELY USED SINCE BATHS ARE TAKEN IN THE OTHER STANDARD TUB IN THE EVENING.
|
||||||||||||||
| |||||||||||||||
| Posted: Sat May 24th, 2008 03:38 pm |
|
8th Post |
|
eleent Member
|
Hello: A 50 gallon heater will likely not supply a whirlpool tub. As you seldom use it, how about keeping two 40s in series with one valved of and drained? When you need the boost, you'll have it for the tub. You'll also never be without hot water should a heater fail  Yours, Larry
|
|||||||||||||
| ||||||||||||||
| Current time is 10:07 am | |
| thetankatwaterheaterrescue.com > Forums > The Tank > efficientcy | Top |
