How to install tankless water heater: The first question is why would I want to install a tankless water heater? The efficiency of tankless water heaters is more than traditional ones because their energy source actually heats the water as it is needed, instead of heating the entire tank as in a storage water heater. Because of this continuous on-demand hot water, this system does not turn off as a conventional one does. This means, there is no wait for hot water when taking a shower or running the dishwasher because as soon as a faucet is opened or the dishwasher begins to run, hot water is immediately available.
Installing a tankless hot water heater can be a little tricky, but the process is straightforward and easily explained with this step-by-step guide. Today, we will talk about how to install a tankless water heater. First of all, you need to turn off the water supply at the main valve in your home. Turn off the main valve by turning it clockwise until it stops (it will make two clicking sounds), or until no more water comes out. Next, turn off the power at your local utility board by contacting them and asking to disabled the line that supplies power to your property.
How to install tankless water heater
Tankless water heater unit selection
The tankless water heater unit is the heart of your new tankless water heating system. It’s responsible for converting the high pressure and low volume of your main water supply into hot water at any desired temperature. Select from a variety of models with different features and specifications to find one that best meets your home’s needs. Tankless units are available in varying efficiencies to meet homeowners’ budget constraints as well. The appropriate unit will depend on the size of your home and how much hot water is used daily.
The tankless water heater unit is the part that stores thermal energy from a domestic hot water supply network and converts it for use in various devices such as hot water heaters, clothes washers, dishwashers, and even showers. In other words, this is the device that allows you to separate demand from the supply, making it possible to allocate hot water only when it is actually needed. Throughput and sustainability are both greatly improved through this approach. Your selection depends on your lifestyle and how often you wash clothes or dishes by hand. You can check this guide to know which type of tankless water heater you need as per your family requirements.
Gas requirement for tankless water heater
A gas-fired tankless water heater can be selected for a variety of reasons, including safety and performance. The main advantage to a gas-fired system over an electric one is that it won’t be affected by Exterior temperature limitations. Tankless water heaters use a natural gas or propane gas line as their fuel source, which means you won’t have to pay the high prices associated with electricity.
Today’s tankless units are flexible and sophisticated pieces of equipment that connect directly to your gas supply. Whether it’s supplied by a natural gas line or by a propane line coming from your existing stove, you can enjoy fast and efficient heat while conserving water.
The gas required by the tankless water heater is more than traditional water heaters. So you also need to make sure that your building has enough gas pressure as tankless water heaters are designed to provide hot water without any storage tank. So due to this, there should be regular and with proper gas pressure, the gas supply is required to work it efficiently. If you have any doubt regarding the gas pressure then you must check with the gas utility provider for meter size.
Air requirement for tankless water heater
The Air requirement for tankless water heaters is not simply the volume of air per minute (Cubic Feet per Minute) that the heater needs, but rather it is the amount of cubic feet of air being heated by the heater per minute (CFH/min). This is determined by multiplying the CFH by 0.0015, which explains why some brands say they have a 1500 CFH heater, while others say they have a 150 CFH heater. Also keep in mind that the higher your water pressure, the less CFH your tankless shower or bathtub will require to operate.
The air requirement for a tankless water heater is determined by the appliances’ wattage and the ambient temperature. If you have any questions about installing a tankless water heater, please consult a professional. You can use a hygrometer or knowing how to read the water level on your existing system as a guide for determining the appropriate amount of air for your new tankless water heater. The higher the humidity, the more air is needed.
Many people think that all tankless heaters require the same amount of airflow. This is not the case. There are two basic categories of tankless heaters: negative-air and positive-air. Regardless of the category, both negative and positive-air heaters require some level of airflow to work efficiently. Airflow is important for all plumbing systems, and especially so in a tankless water heater where it is exposed to lots of steam from the hot water. We recommend that an adequate air supply be provided for the unit.
Setting Water Heater Temperature
The one way is to set the temperature before turning on the water. Placing your hand over the pilot light, turn the temperature knob until it reads 80% full, and then release the pilot light. Turn on cold water at this point followed by hot water once it reaches 100%. Be careful not to turn on any other faucets in the area or turn the high-pressure side on until you have verified the pilot light is off.
You need to set the temperature maximum of 125 degrees F. If we are talking about the shower temperature, it ranges between 104-106 degrees F. So it is fine to set the temperature between 115-120 degrees F.
Water quality requirement for tankless water heater
The importance of water quality for a tankless water heater can not be over-emphasized. The water supply line and any or all of the following components may become contaminated with waste from any municipality or industrial facility: Water Heater, Gas Line, Drain Line, Conduit, and Junction Box. These materials could harbor bacteria that could lead to disease in humans or the destruction of the therapy being delivered by the plumbing. These situations may arise from leaks or breaks in the system due to corrosion, faulty connections, or just age. Also, remember that many city water supplies are treated with disinfectants that weaken with time and exposure to sunlight.
Condensation in tankless water heater
A condensation problem is an indication of a larger problem with the hot water heating system. One possible cause is a dirty heating element. Clean these components using a warm, soapy solution and allow them to air dry before reinstalling them into the tankless water heater. If this does not solve the issue, repeat until you identify a cause and correct it. If the problem still persists, consult with an expert.
Since water in a tankless system does not have time to cool off before it is used, it creates a reservoir that can collect condensation later on. This reservoir can accumulate over time and leave mold or mildew stains behind. To prevent this from happening, make sure to open all of the water valve covers to allow airflow under the whole unit when on standby mode. This process also helps prevent rusting of the valve covers.
Condensation in a tankless hot water heater can damage your home or cause health problems. If you find condensation in your tankless water heater then this is what you should do:
- Make sure the water inlet valve is not blocked by a clogged drain. If your problem is caused by a clogged drain then open and close the faucet several times until air bubbles rise up through the drain pipe. Next check if your water pressure is low at the main valve for your house or if there is a leak coming from your water main.