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Eco Friendly House Cleaning Tips

Eco-friendly house cleaning has become something that more people are aware of, as greenhouse gases and global warming begin to affect us all. You...

on Aug 16, 2017

Everything You Need to Know about Drain Pipe Unblocking

The drain pipes in any property play an extremely important role in keeping the plumbing system running smoothly. These drain pipes are designed to...

on Aug 15, 2017

Improve Home Decor with a Fish Tank

When we think of improving home décor we may not always consider a fish tank. It seems like a small thing, normally tucked away on a shelf...

on Aug 11, 2017

How to Repair Small Foundation Cracks

Identifying early symptoms of foundation trouble can save you thousands of dollars in repairs. The sooner you spot problems, the easier and less...

on Aug 11, 2017

High Tech Home Security

Modern homes have far more security options than those of only a generation ago. Smart homes mean smarter home security options for homeowners. If...

on Aug 11, 2017

Tankless or Instantaneous Water Heaters

by Guest on May 13, 2012

On demand water heaters regardless if they are tankless or instantaneous provide hot water as it is needed. They do not have energy losses like with storage water heaters.  With this you can save money from what's not lost in storaging pre-heated water. Here you'll find basic information about how they work, whether a demand water heater might be right for your home, and what criteria to use when selecting the right model.

Electric Demand Water Heater

Cold water flows though a pipe, then flows through and around several pipes through the heating elements, and the end result is hot water. Beneath the heating unit, a sink has two pipes,  one for the hot water and one for the cold water intake. Both pipes are required for the heating unit.  These are installed best in close proximity where the hot water use is most frequently used.  Eletrical considerations for 110 or 220 volts is also a requirement.
 

How Do On Demand Water Heaters Work

By defination, demand water heaters don't require storage tanks to heat water. Therefore, they avoid expense of the tranditional standby heating units. When a hot water tap is turned on, cold water travels through a pipe into the unit over the thermal heating elements. Depending on the model, an electric element or gas burner heats the water. The result of demand water heaters is to deliver a constant supply of hot water bypassing the need for storaging hot water. Hot water doesn't have to wait to refill a stoage heater and be heated.

Disadvanages

One disadvange is a demand water heater's output limits the flow rate.  You can expect demand water heaters to provide run at a rate of 2–5 gallons (7.6–15.2 liters) per minute.

Even the largest model sometimes cannot supply enough hot water for multiple uses in large households at the same time like taking a shower and running the dishwasher at the same time. If this is a problem for your larger household, you can install additional demand water heaters connected in parallel for simultaneous demands or install separate demand water heaters for appliances.

Other applications for demand and simultaneous water heaters include the following:

  • Hot Tubs and Guest Bathrooms
  • Appliances (dishwashers or clothes washers)
  • Solar water heating system Rainy Day Support

 

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