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Types Of Small Hot Water Heaters

Types of small hot water heaters are usually the same as normal water heater, but in a smaller size. Hot water heaters come in various shapes and sizes, offered by numerous brands. Few of the most used hot water heater types are:

Conventional Storage Water Heater
This, the most common type of water heater, includes an insulated storage tank that holds a quantity of heated water, anywhere between 30 and 80 gallons. What powers the appliance? That depends largely on the services already present in your home, but any of the usual suspects—natural gas, liquid propane, oil, or electricity—can be the fuel source for this type of water heater. Inside the tank, a gauge reads the temperature of the water, and when it drops below a preset level, the unit kicks on to bring the water temperature back up. That process of continual heating goes on 24 hours a day, seven days a week, even when you’re sleeping or away on vacation. So, in effect, you’re paying to heat water that isn’t used. But whenever you do need hot water, it’s there waiting and ready in sufficient supply. Conventional storage water heaters come in many sizes; a small tank suits the modest needs of a bachelor, while larger tanks meet the demands of a family with multiple children.

Upkeep administered in periodic, regular intervals can optimize the performance and significantly prolong the life of a water heater. Routine maintenance tasks include:
Draining and flushing the water heater twice a year to eliminate built-up sediment and minerals.
Testing the pressure relief valve to ensure it is in good working condition.
Before you begin any work on the water heater, remember either to turn off the power supply or to set the gas switch to the pilot position.

Tankless (or Instantaneous) Water Heaters
In comparison with conventional water heaters, the tankless variety promises significant energy cost savings, because it heats water only upon demand. In other words, the only water that you end up paying to heat is the hot water you actually use. Sounds great, right? The downside is that tankless heaters are dogged by a low flow rate: Moving only two to five gallons per minute, a tankless cannot accommodate more than one household use simultaneously. So if you are running the dishwasher, you can’t take a hot shower. For that reason, many homeowners have installed multiple tankless units (feasible thanks to their compact design), each devoted to a different set of appliances and/or fixtures. Whereas a conventional water heater lasts 10 or 15 years, a tankless can be expected to function reliably for 20 years or more. That longevity comes at a cost, however; tankless heaters sell for about double the price of conventional models.

Hire a licensed plumber to flush the unit regularly (at least once a year) to eliminate accumulated mineral deposits.

A free and limitless energy source—the sun—powers solar water heaters, which are practical in any climate, contrary to popular belief. This type of water heater features two parts: a solar collector and an insulated storage tank. Sometimes, the unit installs on the roof; other times, in the yard. Active solar water heaters distribute water by means of a pump, while passive models rely on the force of gravity, not on manmade mechanics.
There are two types of active solar water heating systems…
- Direct circulation systems: A pump circulates water through solar collectors and into a storage tank (suitable for regions with no extreme cold).
- Indirect circulation systems: A pump circulates an antifreeze solution through solar collectors and a heat exchanger, the latter of which heats the water (popular in regions where temperatures reach freezing).

Passive solar water heating systems are less expensive, and there are two basic types…
- Integral collector storage systems: Solar collectors in the storage tank heat the stored water, which then flows into the home’s plumbing via gravity.
- Thermosyphon systems: Solar collectors heat from below, causing the heated water to rise, from which point it travels naturally into the home.

Assuming that a solar specialist provides routine maintenance every three to five years, you can expect this type of water heater to run for 15 or 20 years. With a solar hot water system of any kind, there are a number of inspection and upkeep tasks that homeowners can do themselves:
Regularly clean dusty or soiled collectors
Monitor the connections between a storage tank and its piping
Look for damaged insulation covering pipes, ducts, and wiring
Check the tightness of all nuts and bolts responsible for securing the collectors in place
In an active system, verify that the pumps are operating properly
There have never been more types of water heaters for a homeowner to consider. But if you reflect on your needs, determine how much you wish to spend, and weigh your level of commitment to energy efficiency, you should have no trouble choosing the right model for your home and family.