Tankless Water Heater provides hot water on demand, saving energy by heating only when you need it. These units use gas or electricity to rapidly heat incoming water, then pass it through a thermostat to ensure that the hot water temperature is optimal for your household needs.
However, they aren’t cheap and can be expensive to install. This is especially true if your home doesn’t have the proper sizing requirements and equipment for the tankless heater.
1. Energy Efficiency
Tank water heaters are notorious energy guzzlers, contributing to high utility bills. They can also be prone to leaks, leaving your home with potential water damage. Luckily, a tankless water heater is a better option for those looking to save money long-term and improve their home’s energy efficiency.
In contrast to traditional water heaters, a tankless unit works on an on-demand basis. When you turn on a hot water tap, cold water travels into the unit where an electric element or gas burner is activated to heat it. This allows for an endless supply of hot water, eliminating the frustration of running out during a shower or dishwashing session.
When it comes to energy efficiency, the type of fuel a tankless water heater uses will play a big role in how much you pay for operating costs. You can choose between gas, propane, and electricity models, with different efficiencies offered depending on your local energy costs. The best way to determine which model will be the cheapest for you is to call your local utility company.
The efficiency of a tankless unit also depends on the amount of hot water it needs to heat in a single cycle. This is why it is important to understand your peak water usage and how many gallons of water you use per minute. Once you know this information, you can select a unit that is capable of heating enough water for your needs without overworking the equipment and lowering its efficiency.
Maintenance of a tankless water heater is required, as mineral buildup can reduce efficiency. A plumbing professional can flush your system to eliminate this buildup, allowing it to operate at maximum efficiency. Additionally, a professional can perform routine testing to ensure the equipment is safe and functioning properly. This includes CSA tests for safety, a vent installation detector and more.
In addition to maintenance, it is crucial to keep up with regular inspections of your tankless water heater. A certified technician can detect and repair any issues before they escalate into larger problems. They can also help you create a schedule for routine cleaning and maintenance to extend the lifespan of your unit.
2. Limited Hot Water
Unlike tank water heaters that keep a fixed amount of hot water on-hand, tankless units heat water as it flows through the system. As a result, it can take a little longer for the hot water to reach your sink or showerhead than with traditional tanks.
This is especially true if you’re trying to do two or more things at once, like washing the dishes and taking a shower. This is because the flow rate of the water heater needs to be balanced with the incoming water temperature and other factors. To ensure you can always get enough hot water, it is recommended that you choose a unit that is sized for your household’s flow rate and temperature rise requirements.
Because a tankless water heater is powered by electricity, it can be subject to surges that may trip the breaker. This is not uncommon for homeowners to experience, however, it can be very frustrating and inconvenient if you rely on your tankless water heater for daily tasks.
Luckily, there are a few simple steps you can take to troubleshoot this problem and restore your water heater’s functionality. First, make sure the unit is receiving power by checking that the circuit breaker hasn’t been tripped. Also, ensure the gas supply valve is open and the pilot light is lit.
If you notice the unit is leaking, this is a very serious issue that should be addressed immediately. Leaks can cause extensive and costly damage, so you should have it professionally diagnosed right away. There could be a number of different problems causing the leak, so it’s important to have the issue investigated as soon as possible.
Another potential issue is that the unit’s heat exchanger is not functioning properly. This can be due to several reasons, such as the water quality, hardness, and flow rate of the incoming water, as well as the installation location of the tankless water heater. To help prevent this from happening, it is recommended that you have the unit professionally serviced and cleaned at least once every four to five years.
3. Power Outages
As a tankless water heater heats only water on demand, it uses very little electricity. However, just as with any household appliance, a power outage can interfere with your ability to use hot water. Luckily, most tankless water heaters feature built-in freeze protection that utilizes an electric system to melt any ice that forms inside the unit.
If you’re experiencing a power outage, your water heater won’t work until the power returns. A simple solution is to reset your water heater by flipping the breaker switch (for electric units) or the gas valve (for gas-powered units). If this doesn’t work, you may have an electrical issue that needs professional help.
Sometimes, a lack of hot water is the result of something as simple as someone in your home showering before you. Using too many faucets at once can overload the water heater, leading to a short-term loss of functionality. However, if the problem is ongoing, it could be that mineral deposits or sediment have clogged your water heater, preventing it from heating your hot water. If this is the case, it’s time to call a plumber to drain and flush your water heater.
Another common reason you might experience a lack of hot water is that your pipes are frozen. This can be a problem whether you’re running an electric or gas-powered tankless water heater. While you can thaw the pipes yourself by turning on a space heater near the unit, it’s best to call a professional to ensure the process is done safely and effectively.
Lastly, a lack of hot water could also indicate that your water heater isn’t properly installed. Inspect all plumbing lines to ensure they are the proper size and installed according to the manufacturer’s specifications. It’s also a good idea to have your plumbing flushed on a regular basis to remove any sediment buildup. This helps maintain optimal performance and prevents more serious problems down the road.
4. Installation
The upfront costs of a tankless water heater are higher than traditional models, but they can save you money on energy bills in the long run. Plus, they’re sleeker and more environmentally friendly, making them a great choice for homeowners who care about the environment.
The type of fuel a tankless water heater uses (gas, electricity or propane) will also influence its cost to operate. To determine which option is the cheapest for you, call your local utility and ask them what the current prices are. You should also look into any rebates that might be available.
Gas models require special ventilation systems to protect your home from carbon monoxide leaks. Depending on the model, you can choose between a direct vent or power vent system. You’ll also have to decide whether you want a condensing or non-condensing unit. Condensing units produce hot water twice as fast as non-condensing models and require a larger electrical circuit.
Before you buy, it’s a good idea to hire a plumber to install your new tankless water heater. They’ll be able to help you choose the right model for your home and ensure it’s properly installed. Be sure to find a plumber who provides clear upfront pricing information and offers exceptional customer service. Avoid plumbers who seem evasive when you ask for an estimate.
Once the installation is complete, you’ll need to connect your water lines and test the unit for operation. If you’ve used your tankless water heater for several months, you may also need to perform a few annual maintenance tasks.
While a Tankless Water Heater can save you money in the long run, it’s not a DIY project. It can be complicated to install and requires a licensed professional to ensure the job is done correctly. In addition, the job can involve rewiring your home or upgrading your electrical service panel. It can also be dangerous to work with gas and electricity, which is why it’s important to always have a licensed professional do the work.