How do you plumb an indirect water heater?

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How does indirect fired water heater work?





An indirect water heater uses the main furnace or boiler to heat a fluid that’s circulated through a heat exchanger in the storage tank. The energy stored by the water tank allows the furnace to turn off and on less often, which saves energy.

How does an indirect heater work?

Indirect-fired heaters are similar to oil- or gas-burning furnaces with chimneys in homes. In such units, a flame in a burn chamber warms the heat exchanger. The device draws cool air into two different chambers. The air passes over and around the heat exchanger and gets warm.

What is the life expectancy of an indirect water heater?

15-20 years

Indirect water heaters typically last 15-20 years.

What temperature should indirect water heater be set at?





120°F.

The recommended temperature for normal residential use is 120°F. The dial on the aquastat does not always reflect the out- coming water temperature, which could occasionally exceed 120°F.

What is the difference between a direct and indirect water heater?

Direct fired water heaters are solely dedicated to the job of hot water generation, providing a faster heat up and response time compared with an indirect system which is in fact ‘heating water to heat water’.

How does an indirect water system work?

An indirect hot water cylinder typically uses an external energy source, such as a traditional central heating boiler or a solar thermal system, which is fed into the cylinder via a coil or heat exchanger which then ‘indirectly’ heats the hot water.

Does indirect water heater need expansion tank?



Short answer? If your home has a “closed” plumbing system, then yes, you’ll need an expansion tank.

What are the advantages of indirect hot water system?

The greatest advantages of the indirect water heaters are the significant reduction of flue losses. Less maintenance – no additional burners to maintain. Less cost – no additional venting required or fuel lines to run. Better performance – more available hot water with quicker recoveries.

Does indirect water heater have anode rod?

All Aqua Plus® indirect-fired water heaters are equipped with a magnesium anode rod as an added measure of protection against corrosion at the weld joints of our stainless steel tanks. The purpose of the anode rod is to be sacrificial and reduce the damaging effects of aggressive water on the water heater.

Should hot water heater be turned off when on vacation?



Any time you go on vacation, it’s best to also turn off your water heater as well. Turning off the source of the heat (gas, electric) while you’re away will not damage your water heater. This will save you in power (gas) and potential damage if it leaks too.

How long should a 40 gallon hot water tank last?

For the most part, a 40-gallon water heater should last between 10 and 12 years. Some units come with a warranty, so you should check before buying. The following are a few signs that it may be time to replace your water heater: You are getting less hot water than normal.

How do you test an indirect water heater thermostat?

Test the lower portion of the thermostat, by touching one lead to the common terminal (next to the temperature setting) and the second lead to the left heating element terminal. If the water in the tank is below the thermostat’s set temperature, the multimeter should read close to zero ohms of resistance.

Is 140 degrees to hot for water heater?

Professionals recommend keeping your water heater set at a temperature between 130 and 140 degrees Fahrenheit. Any higher, or lower, could actually be dangerous for you and your family. While turning the temperature up higher can result in burns, turning it lower than the recommended setting can also be dangerous.

What should water heater be set at AB or C?



The Department of Energy recommends setting your heater to 120 degrees Fahrenheit. That should be plenty hot enough for most uses in your home. Now, some water heater temperature controls come with settings that read “A-B-C” as opposed to numbers.

Should both thermostats on water heater be set the same?

If your water heater has two thermostats, adjust both the same amount. The top thermostat should be a few degrees higher than the bottom.

Why are there two thermostats on a hot water heater?

Most electric water heaters above 20 gallons have two thermostats that sense the temperature of the water in both the top and bottom of the tank. The upper thermostat is the boss and always tells the lower thermostat what to do.

Is 50 degrees hot enough for hot water?

The temperature at any tap should be above 50 degC within 60 seconds. See the HSE L8 document Legionnaires’ Disease; The control of legionella bacteria in water systems. The thermostat is usually 1/3rd or 1/2 of the way up the cylinder and the water will stratify and be colder blow this.

What is the ideal water temperature for a shower?



There is no absolute rule for how hot a shower should be, but most dermatologists recommend keeping the temperature at an average of 98°F (37°C) to 101°F (38.3°C) or no more than 105 °F (41°C).

What is ideal temperature for domestic hot water?

The ideal temperature for domestic hot water is 120 degrees Fahrenheit, or 49 degrees Celsius, to avoid the possibility of scalding. Furthermore, if the water heater is set at too high a temperature, it can result in unnecessarily more expensive energy bills from the running water emerging from shower systems and taps.