PC 20-04 asked:


I have a electric mobile home water heater that is leaking at fitting where the hot water connects. The connection is on the side 2 inches from the top. The connection is plastic a friend told me to put some plumber putty around the connection.

I was reading on the container of the plumbers putty and it stated not to use on plastic.

I have seen the spray foam but did not know if I could use this because of the hot water temp being 120 degrees.

Any Ideals the water heater is only a year old and I hate to replace it. The water heater was not purchaced by me so I doubt warrenty would be good.

Tatyana Turner asked:


Do you feel frustrated every time, when you take a shower and the hot water runs out? And your energy bills are huge? Then it is possible that you need to look for new water heaters. An instant water heater can solve both problems for you.

Advantages of instant water heaters

An instant tankless heater has several advantages when compared to a conventional water heater:

It saves you energy

It heats water as you use it, as much as you use it and never runs out

It takes very little space

Common water heater usually has a tank that holds 40 to 80 gallons of water, keeping it hot at all times, day and night. As you use the hot water for showers, doing dishes and so on, it is replaced with cold water and heated. When you are not using hot water and even when you are not home all together, hot water just sits in the tank and as it waits to be used it loses the temperature. So the heater reheats water in your tank every now and then. This means loss of energy for you.

Instant water heaters don’t have a tank. For this reason they are also called tankless water heaters. As soon as you turn on hot water the unit turns on and heats the water, typically at 125 degrees Fahrenheit. So this type of heater doesn’t use energy until the faucet is turned on. It produces hot water instantly and if that temperature is too hot for you simply regulate it by turning on the cold water. When you are finished and turn hot water off, the instant water heater shuts down straight away, using no energy. This can cut your energy bill almost by 50% every month.

Energy is not the only thing you save, a tankless heater will also save you water. You know how you always have to let the cold water run first, before the hot comes out? With an instant tankless water heater the water is hot from the start, so there is no need to run the water to before it turns hot.

When room is a consideration, a tankless heater also offers a solution. Comparable to a traditional 40-60 gallon water tank, an instant unit is very small. It can be easily installed in a small home or apartment.

Industrial instant water heaters

While tankless heaters are most used in residential homes, great energy savings lead to their commercial use as well. And more water you use more you save, for example a house using 120 gallons of water a day with a 40-gallon hot water tank typically spends $112.25 per month on heating water. For the same usage, an instant tankless water heater will cost you only about $26.95 per month.

Cost of instant tankless water heater

Initial cost is the main disadvantage of a tankless heater. It costs much more than the conventional one. But as you can see, the energy savings will compensate for this very soon, probably in the first 6-8 month of using your new heater. And if the cost is a concern, look for discounted instant water heaters online. With internet retailers you can always get your tankless heater cheaper.

Buying a tankless water heater

You can get instant heaters from same stores that sell other types of water heaters. As their popularity has grown recently, you will not have any problems finding a decent instant water heater. Another option is too look online. Sometimes you can save quite a lot by buying a water heater from internet retailers.