I noticed you were putting in tankless water heaters. I've received mixed reviews about these. Have you discovered that you truly will save some money using these? When we last had someone out to look at our heater, he said he hated them and there were very few that they actually supported. And insurance wouldn't cover them at all. It's been overall mixed reviews about them. But i'm really interested in finding out if they're all they're hyped to be.
Well, a couple things:
1. My cousin has one and says it's great. Same brand we are going to have.
2. Our builder has used them in his last half-dozen houses or so and says all the owners seem to really like them.
3. One major complaint I have is running out of hot water (our place, many other homes I have visited as well) and this means I'll never take a cold shower again (unless I choose to).
4. The warranty on them is 6-12 years depending on the parts you are looking at.
5. I know that while running they use more gas than a "standard" tank heater, but the majority of the time they won't be running at all and should save $$$ in the long run.
6. Yes, there are some negatives to them as well (takes a few seconds to fire up, can get small gaps with cold water turning sources on-off-on again, etc), but most of our use is showers and dishwashers/washing machines, so these problems should be minimized.
7. We are going to insulate the pipes to help with temperature control.
8. The units will be located as centrally as possible (right next to the kitchen and laundry) and equidistant from the master and childrens bathrooms.
9. To minimize the possibility of using more hot water than they can put out we are going to hook up two in parallel so if demand tops what one can provide, the other kicks in as well.
10. My wife has a habit of running the laundry and dishes at the same time, sometimes while I am in the shower. The tankless heaters should prevent us from running out of hot water.
11. The units are repairable and not just disposable like tank heaters.
12. We are not running a recirculation system (so yes, we will have to wait a few seconds for hot water) but we are used to that and the energy savings over time are potentially significant (according to our architect).
13. It will probably be hard to determine real cost savings vs. a tank heater. We have gas now (in the city), but out there we will have a propane tank and will be filling as needed. We will also have a gas fireplace (we do not now) and two heater/AC units (one now), so gas use will be up from all these items, I think. We will also have an electric oven instead of gas (like we do now), changing gas use the other way. On the plus side, our electricity use should hopefully go down (better insulated home, more efficient appliences, whole-house fan, etc), so who knows.
14. Not sure about the insurance thing - I haven't heard about insurance not covering them.
15. A side note - the Rinnai brand are the only ones I have found that cover well installations, all others automatically void the warranty for such use.
If someone here had a regular tank heater and switched to tankless, maybe they could give you a better idea on how much savings they saw.
Last update: Thursday, January 25, 2007
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