Hot Water Unit Heaters | Water Heaters

Find right water heaters, including tankless water heaters, solar water heaters for you.

Do you need to shop for water heaters. Many people think that electric hot water heaters are very expensive, where there are commercials seen often which indicate that gas water heaters are a better choice because they are cheaper and they keep working in the event the power goes out. Water Heaters Electric Vs Gas – Chambliss Plumbing San Antonio

My goal as a water heater advisor is to save you money. How does your water heater relate to your wallet? Possibly, one utility will be less expensive to operate than the other. My prediction is most households do not rich person a preference. The area in which you reside might dictate the type of water heater you will install. Certain aspects of the country are predominately gas, while other people are mainly electric. If you have a choice, hopefully this info will enable you to decide. You can save from the beginning by choosing the correct heater to your household.

Assuming you have a choice, how do you choose? Ask yourself if the present water heater does a sufficient job. Does it supply enough hot water for your family? If you’re replacing an existing water heater, check to see what sort you have now. Is it fuel, electric or even propane? If your heating unit has done a good job for your family, have you thought to stay with the same type? Typically that will be an easier and less expensive installation.

Many factors can enter the determination. But for this comparison, let’s keep it simple.


It’s hard to get simpler than an electric water heater. It is recommended to electrical power your electric heater with a 10-2 wire run directly from the electric panel, and connected through a 30 amp breaker. Basically, you have a pair of heating elements and two thermostats. Considered one of each are at the top the other of each are at the bottom level. Replacing either component is simple. Nearly all elements just screw in, making replacing easy.

Thermostats can be replaced by the newbie by changing wire for wire. The purchase price is reasonable as well. Most home improvement or hardware stores sell both factors and thermostats under .00 each.

The negative factors about an electric water heater are that it heats water slower than gas, and commonly electric rates are higher than gas.


Gas water heaters are slightly more complex. Wholly gas heaters must be vented. You possibly can vent an atmospheric vent heater in to a chimney or a vent stack, which should extend over the top, and should be at least 2 feet higher than the highest point of the roof. A Power-Vented heater will have a blower on the top, and force the gas vapors out the area of the home through plastic pipe. A chimney is not required.


Today’s atmospheric vent storage heaters commonly have a pilot light, so you need a thermocouple or thermopile (a type of electric thermocouple). An igniter is needed to help light the pilot. And all makes possess a main gas valve assembly. Thermocouples are available most anywhere for cheap.

If your model has a thermopile, you may pay us almost as much as the Gas Company. Various manufacturers have their own style of igniter. They can cost some good money, but rarely are found being defective. The main gas valve fabrication can cost a bit.


A Power Vent style of gas water heater is becoming more popular by builders today. Because these heaters do not require a chimney, most contractors will choose this style because they are certainly not restricted in design, and cam locates the water heater anywhere, and extend the plastic pipe to the exterior wall. This is usually an inexpensive undertaking.

If they chose an atmospheric venting style, it would have to be near the chimney, restricting the homes design. Power-venting heaters can cost as much since twice the price as a standard storage type of heaters. As well, many builders would rather pay some for a power-vented tank than , a lot for a chimney.

Power-vent heaters are quite building complex. For starters, unlike standard gas heating elements that run completely with gas, this burner operates with gas, and the actual blower runs on electricity.

We already said that to acquire this style of heater would cost about twice the cost because the standard. Choosing this style will allow you more flexibility in locating the water heater in your house. However, repair can be varying costly. For newbies, there is a blower that can cost up in order to 0.00.

The main gas valve also price two to three times as very much like the gas valves on a traditional atmospheric type of heater. Also, there are numerous smaller but essential components such as a diaphragm, pressure switch and wiring use. Do It Yourself-Tankless Water Heater Installation With Recirculating Pump

Abstract For years, I wanted to hold the efficiency of a tankless water heater, but I never knew how to get a heater installed in our house mainly because it contained a recirculating pump connected to the present tank heater. I didn’t find any information on the net on how to deal with equally a tankless water heater and a recirculating pump. The challenge with this particular configuration is that in order for your tankless water heater to turn on the burner it requires flowing water. The recirculating pump doesn’t draw enough water to ensure that the burners start up so therefore another solution needs being created to have a hot water configuration that includes a tankless water heater and a recirculating pump. This article will identify the hot water topology to use for creating a hot water system in a domestic house that contains both a tankless heater and a recirculating pump.

Introduction Designing a water heater system for a domestic house that contains both a tankless water heater and a recirculating pump requires thought and concern. This article will describe how to design a tankless hot water installation, what you need to buy, how to prepare for the setting up, installing the heater itself and expectations with a tankless water heater.

Design a Tankless Hot Water Installation When designing a tankless water heater system, you need to look at: water hardness, gas flow, exhaust and venting, drains, and the dreaded recirculating send.

Installing your watter heater
Water Hardness Hard water will destroy a tankless water heater. The calcium build-up ruins the efficiency of the heater and definately will eventually prevent water from moving. Testing your water before you install the heater is vital, and you want water that is less than 50 ppm. If your water isn’t soft, you must install a water softener.

Gas Flow Tankless water heaters need a lot of gas to the heating unit when it is running. If the heater cannot get the mandatory flow of gas, the onboard computer will generate a fault and the heater will certainly not function correctly. Most heater manufacturers specify that you need a 3/4″ gas line to the fastball. Some manufacturers suggest that you analyze that you have enough pressure from your gas meter and to install a larger gas meter from the gas service. For my installation, I didn’t perform any modifications to the actual gas line since it was already 3/4″ from the meter. I seemed to be definitely nervous the first time the heater fired up awaiting a fault from the computer, but gasoline pressure has never been an issue with my installation.

Exhaust and Venting Exhaust and venting is the main source of issues with tankless warm water systems. Many installers connect the heater directly to existing duct work which will most certainly lead to system failures. You must carry out sure that you use the ventilation that is specified by the heating unit manufacturer. If you do not operate the correct venting the heater will definitely fail. The venting manufacturers have proved helpful directly with the heater manufacturer to make sure that the vent pipe is sized right and that the heater operates from peak efficiency. Also, make sure which you follow all of the recommendations in order to connect the vent to the heater along with venting it to the outside. Anticipate a payment 20% of the heater cost in release pipe. Vent pipe for a tankless water heater is not galvanized and not something that you can pick upwards at the big box home improvement stores.

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The heater not only uses the actual vent pipe for exhaust, it additionally uses it for fresh air absorption. Using the correct vent pipe is vital to the success of your set up. There is so much caustic elements on the exhaust of the fastball that you will destroy the water heater if you don’t use the correct venting.

Drains Many homeowners choose to install a condensing heater. A condensing heater is more efficient, but it really does have two drains on it. The first drain is a pop-off valve in case involving a over-pressure situation like a regular tank water heater and the second drain is good for the condensing liquid. My heater had a plug installed on the condensing drain. If you forget to remove this particular plug, or you don’t correctly install a drain to remove the condensing essential liquids your water heater will rust out.

The combustion byproducts of natural fuel are water and other petroleum byproducts. The water that is produced from the burning needs to be drained. I decided to drain the liquids into an outside the house area that is full of plants. You should consult your city or county code on the proper disposal of the condensing liquid. Water heater manufactures provide mechanisms for managing the condensing liquid.

Recirculating Pump Challenges with a tankless water heater is that they need a flow of water to turn the burner on. I honestly wasn’t sure that the recirculating pump motor that was installed on the recent tank heater in the house may generate enough flow to trigger your burner to ignite. Not wanting for taking a chance with this installation, I chose to install a buffer tank that would keep a small amount of hot water always hot. Installing a buffer tank also eliminates the phenomena known as a “cold-water sandwich” when the heater takes time to respond to new demands on the hot water flow as faucets are turned on and off throughout the system.

System Expectations With this hot water system, you will never run out of hot water and you will gain the efficiency of a tankless heater. There is one style flaw with this system, and assuming you run the recirculating pump with out drawing any hot water from any of the faucets the hot water coming out of the faucet will be luke warm. This is caused by the fact that the water is constantly heating the pipes in addition to slab if the pipes are within the slab. This heat exchange is a lot for the small point of use water heater to keep up with. In my house, I manually control when this recirculating pump is turned on and wait about 30 seconds for the hot water to reach the furthest faucet. I can then turn on the water and not notice any cooling in the water because the tankless water heater is mixing water into the recirculating loop.