What are pros and cons of tankless water heaters (gas only)?

Question

I am replacing a gas water heater that is 12 years old. It's time to replace it. I see that there are tankless water heaters out there now. My questions are as follows:

1) Is tankless water heater technology mature?

2) How does a tankless water heater work to supply hot water for a shower or filling a bathtub? In such a scenario, cold water (possibly 35-50F) must be heated very quickly by a hundred degrees or more in real time in order to supply hot water fast enough. How does such a water heater accomplish this?

3) My specific needs are for a shower or two at a time, lasting in total 10-20 minutes, and then intermittent daily use in faucets and the like. Would a tankless fill needs?

4) Any specific brands to seek out/avoid?

Thanks.

Answer 1

Tankless waterheaters are becoming popular in some circumstances. The benefit is that if you're not using any hot water it's not costing anything. But when you are using hot water the tankless is using about 200,000 btu's compared to a 40 gal waterheater that uses about 40,000. Households with large families are not as happy or save much with them as smaller 1-3 person households. Some people complain about not having as much water pressure as they like for a shower. The reason for this is that with a standard water heater the temperature is hot enough that you mix both hot and cold together. With a tnakless often you need to use straight hot water and since no cold is mixed in you end up with less pressure. Although there's pros and cons most people who have installed them are satisfied with them. Have seen quite a few Rini tankless heaters.

Answer 2

Personally I think they are a waste of money considering how little energy it takes to keep the water in a 40 gallon tank hot.

If you have ever turned your water heater off for 24 hours you will notice the water is still quite warm even after 24 hours.

The tankless require larger venting and are much more expensive to install. They are limited in how much of a temperature increase they can provide. If your incoming water is real cold you may have to install two units in series.

You will have to look at the information from the manufacturer to find out the temperature difference.

Answer 3

i certainly like my tankless gasoline water heater. i've got had it over a 300 and sixty 5 days now. It makes use of roughly 40% much less gasoline a month. even regardless of the undeniable fact that the preliminary value is extreme, you will get a $3 hundred tax credit on your earnings taxes. That enables. attempt to discover a variety that has a nearby provider contractor in case it tears up. you do no longer desire some inexperience yahoo engaged on it. Get the biggest length they have too, it is no longer that somewhat extra and you could furnish 2 baths, dishwasher, washer etc. all on the comparable time. good success.

Answer 4

still new to the market.the ones from the 80S where called a paloma pac.thay worked well until the inner piping started to rot.was more to change out the piping than it was for a new heater

Answer 5

yep it heats water fast, and wont use much gas, will be a saveing in the long run