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Excluding HI, AK & Canada, and products marked Special Handling. Free Shipping on qualified orders over $599!
Excluding HI, AK & Canada, and products marked Special Handling. Free Shipping on qualified orders over $599!

About Us

Low Energy Systems, Inc. has a broad selection of gas indoor, outdoor and direct vent, ENERGY STAR qualified gas tankless and electric tankless water heaters for residential and commercial applications, as well as under the sink water heaters, solar thermal and hydronics products. In addition, we have a complete line of venting, parts and accessories such as Tankless Installation Valves and the Un-Clog-It descaling kit to make installation and service as simple as possible. We stock parts for all heaters that we sell and offer incomparable expertise and products to satisfy almost every possible need for hot water.

We don't just sell our products. With over 45 years of experience, we are dedicated to providing free technical expertise to all our customers. Low Energy Systems is the hot water expert with thoroughly trained technical assistance personnel to support all of the products and accessories we sell. We are dedicated to providing our customers with products high in comfort, economy, efficiency and reliability.

WaiWela (Pronounced 'Vi-Vela' -- 'hot water' in Hawaiian) is proud to be affiliated with Paloma Industries, Ltd. Paloma was the first gas tankless water heater manufacturer to enter the US market more than 45 years ago and continues to be the leader in the development of safe gas technology.

Company History

Low Energy Systems was founded in 1977 in Camden, Maine. At that time, we were faced with an oil embargo. We were facing a cold Maine winter and people were afraid of being without heating oil. A window of opportunity opened that allowed a new business to start up.

Our philosophical underpinning was appropriate technology. In Maine we had huge forests of hardwoods that would benefit from some thinning. Backyard welders followed plans from The Mother Earth News and built hydraulic log splitters and wood stoves. Neighbors helped each other cut and stack wood in huge creative piles. There was chain saw accidents and chimney fires and smog, but we sent a message that made the front covers of many news magazines. We will survive without the oil!

Now Low Energy Systems is in Denver, Colorado where the burning of wood is mostly banned, and the company sells efficient gas appliances. We have pioneered the use of tankless gas water heaters as the sensible alternative to tank type water heaters. We reasoned that people would not leave their automobile running all night so that they could drive to work in the morning, but they were doing that exact same wasteful thing with their water heaters. An opportunity exists.

Today we sell many tankless water heaters and educate consumers and support users with technical service assistance. We work hard and get slow growth results mostly because natural gas is cheap! The more expensive, smaller propane fuel market has always been stronger in terms of consumer demand.

We believe in what we do, and we support our customers. The products that we offer vary in capacity, efficiency, and ease of installation. This site aims at simplifying the purchasing decision by only offering the highest quality / value tankless water heaters within a hopefully user-friendly organization.