Four Things to Consider Before Buying a Pool Water Heater That Could Save You a Lot of Trouble

!: Four Things to Consider Before Buying a Pool Water Heater That Could Save You a Lot of Trouble

Pool heaters are a great way to ensure that you can continue to enjoy your pool even after the summer has come and gone, or even during summer nights for a romantic couple swim, but with so many products on the market it can be difficult to decide which one is right for you. Here you will find information on some different types, so you can make up your mind without making any expensive mistakes.

Heat pumps

One type of pool water heater is the pool heat pump. This works by circulating the water from the pool through the mechanism and compressing it, thereby heating it and returning it to the pool. This is a very cheap way of heating your pool, as it only takes a small amount of electricity to operate the pump. However, it can take some time to heat the pool completely, especially with larger pools.

Electric and gas heaters

These types of pool heaters work much quicker, so you won't have to wait long for your swim. A gas heater is the fastest way to heat your pool's water, but can be quite expensive to run. And electric heater is also quite fast and is cheaper to run than a gas heater but not as cheap as a heat pump.

Good craftsmanship

Pool water heaters undergo a lot of wear and tear, so you should buy a product from a reputable manufacturer to make sure you will get something guaranteed to last, with waterproof construction and reliable parts.

Which companies to choose?

Some well known companies with good reputations include Raypak, Hayward and Intex. These companies offer good warranties on their products and are often easy to install.

Four Things to Consider Before Buying a Pool Water Heater That Could Save You a Lot of Trouble

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Have you ever had to stand shivering in the cold morning air waiting for hot water with your arm outstretched, fingers extended into the cold stream of water. It seems to take forever for the water to get hot. Speed up it up with a circulating system.

Traditionally, if you had a circulating system, it meant that you had a hot water pipe that ran in a big loop from the outlet of the heater to each fixture one after the other, and then back to the inlet of the water heater through a small pump. By continuously pumping water through the loop you have instant hot water at every fixture.

This is very convenient. Hotels and motels have circulating systems; otherwise it could take hours to get hot water with such long pipes as they have.

However, instant hot water is also very expensive. Not only do you have to pay for the energy to run the pump continuously for long periods of time or even full time, but you also have to pay for the heat energy being radiated into the environment from that big loop of piping. The cost of heating the water is considerably more than the cost to run the pump.

There are a number of manufacturers producing circulating systems that utilize the cold water line as the return line.

Some of these pumping systems use small pumps that pump water very slowly, and are temperature controlled. The pump turns on when the water temperature drops below a set point, and then shuts off when the water temperature in the pipe reaches another set point. This keeps the water your entire piping system luke-warm . The water is warmer near the heater and colder the further you get from the heater, but it is tepid through out the piping system.

Most folks don't really want the cold pipe full of warm or tepid water. You don't get "Instant Hot Water" as the manufacturers claim. I think they should be honest and call them "Instant Tepid Water Systems". The Lang Auto-Circ and The Grundfos Comfort System are two such systems, and the Hot Water Lobster is another. The Hot Water Lobster doesn't have a pump, but relies on the fact that heated water rises, and the Lobster valve has to be substantially higher than the heater for the system to work.

Unfortunately these systems consume much more energy since you are heating that big loop of piping and return line and its surroundings. The cost of the energy will far outweigh any monetary savings from the water conservation aspect.

Another class of systems that use the cold water line as the return line is the "Hot Water Demand Systems". These systems only pump the water to the fixture when hot water is "demanded" by the user. The pumping costs are small; typically demand systems use less than .00 per year in electricity costs. This is because they run for such a brief time, typically less than 1 minute per use.

When the user turns on the pump it runs until hot water reaches the fixture and then the pump automatically shuts off. The cold water line does not end up full of warm water.

With the demand system the energy consumed is no more than if the user just ran the tap as normal. And since the water is not being circulated it does not affect the life of your tankless heater or the warranty.

The water is pumped more quickly than if you ran the faucet full throttle. You save time, water, energy, and money!

There are at least three manufacturers of demand systems, Metlund, RedyTemp, and Chilipepper. The Chilipepper will run any tankless water heater. Some models of the Metlund system will run tankless water heaters, and some won't, so be sure to inquire before you make a purchase.

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Have a Tankless Water Heater? You Need a Hot Water Demand System

!: Have a Tankless Water Heater? You Need a Hot Water Demand System

Tankless water heaters have several advantages over conventional Storage type water heaters that store a large volume of water in a tank.

One advantage is that since the tankless unit does not have a tank, there is no continuous heat (energy) loss from the large volume of stored heated water, as there is with a traditional Storage type heater. Typically tankless heaters do not have standing pilot lights like tank type units, saving even more energy. There is no question tankless water heaters are more energy efficient.

Another advantage is that you have virtually unlimited hot water, you will never run out. This could be a double edged sword though, as there is a tendency for humans to use what is available. Some users might end up taking much longer showers for instance, leading to an increase in water and energy usage.

This effect was common back when the government provided large tax credits for installing solar water heaters. Homeowners believing they now had cheap hot water tended to use a lot more water than before the solar heaters were installed. They used so much more that the monthly water heating bill actually increased in a many of the homes where the units were installed the backup heating elements were being used so much of the time.

A minor advantage that tankless units have over Storage units is the size of the footprint. The tankless units take up less space, although I don't think that is very important to most people.

Obviously there are some disadvantages to tankless water heaters. For one thing, they are much more expensive, and far more complex than a standard water heater. If they require repair it's likely to be more expensive, and the parts are harder to obtain in some Cases. Gas units require a large and more expensive flue, and electric units require very heavy wires because they use so much electricity.

Tankless heaters are typically turned on by a flow switch which turns the heater on when a minimum flow is reached, typically ½ to ¾ gallons per minute. This can be problematic if you need a very small flow of heated water, and can lead to wasting water. Most circulating pumps don't pump enough water to reliably activate tankless water heaters.

Using a traditional circulating pump will void the warranty on most tankless heaters, since they will cause the heater to turn on and off very frequently and far more than in typical household usage.

One of the biggest problems with the tankless heaters is the fact that they take much longer to get water to the fixture than traditional tank type units. You can picture a tankless water heater as a long pipe coiled up over a flame. For the water to get fully hot, it must travel all the way through the pipe. If the water starts out in the middle of the heater for instance, it will leave the heater after only being in the pipe for half the time it would need to reach full temperature. This means that it will take much longer for your water to get hot while you run the faucet waiting for it. It's pretty clear that this will cause an increase in water being run down the drain, costing the home owner money, wasting one of our most precious resources.

There is however a way to eliminate any of the water from being wastefully run down the drain while waiting for hot water. Use a demand system. A demand system only turns on when hot water is "demanded". When you are ready for your shower you push a button and the pump sends the heated water from your water heater to your fixture more quickly than if you run the shower at full blast, and the pump shuts off when the hot water reaches it. Thus you save time, water, energy, and money.

Many local water districts offer rebates for demand systems, so check with your local water company, some of the rebates cover the entire cost of a demand system, so in effect, you get a free system!

Have a Tankless Water Heater? You Need a Hot Water Demand System

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