Call 7 days a week from 8am to midnight.   |   305-823-6991


Tankless water heater sizing should be this simple.

Let's Get Started!

Review the heater maps below and simply click or tap on the appropriate heater to make your selection.

*NOTE: If you have a washer/dryer, rain-fall shower heads, jacuzzi or any other special needs please call for assistance with sizing.

Full color logo of Titan Tankless Water Heaters

Titan tankless water heater size guide displaying heaters from smallest to biggest.

 

Full Color logo of iHeat Tankless Water Heaters

Titan N270 Titan N210 Titan N180 Titan N160 Titan N-120S Titan N120 Titan N100 Titan N85 Titan N75 Titan N64 Titan N42 Titan N10

iHeat tankless water heater size guide displaying heaters from smallest to biggest.

 

Full color logo of Stiebel Eltron Tankless Water Heaters

iHeat AH Series AH27 iHeat AH Series AH24 iHeat AH Series AH21 iHeat AH Series AH18 for 1.5 to 2 baths in moderate climates or 2 to 2.5 baths in warm climates iHeat Magnum Series S16 for 1.5 to 2 baths in warm climates iHeat Mangum Series S12 for 1.5 bath homes in warm climates iHeat Magnum Series S9 for 1 bath homes in warm climates iHeat Magnum Series S7 for point of use. iHeat Magnun Series S4 for point of use. iHeat SH-2500 Shower Head for point of use. Siebel Eltron tankless water heater size guide displaying heaters from smallest to biggest.

 

Stiebel Eltron 36 Plus Stiebel Eltron 29 Plus Accelera 300-E Residential Heat Pump Stiebel Eltron Accelera 300 Stiebel Eltron 24 Plus Stiebel Eltron 20 Plus Stiebel Eltron 15 Plus Stiebel Eltron 12 Plus Stiebel Eltron Tempra 24B Stiebel Eltron Tempra 20B Stiebel Eltron Tempra 15B Stiebel Eltron Tempra 12B Stiebel Eltron DHCE 12 Stiebel Eltron DHCE 8/10 Stiebel Eltron DHC 10-2 Stiebel Eltron DHC 8-2 Stiebel Eltron Mini-6 Stiebel Eltron Mini-3 EcoSmart electric tankless water heater size guide displaying heaters from smallest to biggest EcoSmart ECO-8 EcoSmart ECO-11 EcoSmart ECO-18 EcoSmart ECO-24 EcoSmart ECO-27 EcoSmart ECO-36


Others sell tankless, we know tankless.


We're not here to sell you a tankless water heater, we're here to help you buy one.

When it comes to tankless water heaters, it is imperative that all potential customers understand the ins and outs before they take the plunge. Let's face it, tankless water heaters are NOT a "one-size-fits-all" solution and a myriad of considerations need to be taken into account before you spend your hard earned money on a fix that causes more problems than it solves.


We have the tools to help you make the right choice.

From our sizing guide, to our incoming water temperature map, our on-page filtering, and our dedication to answering your questions on the phone, 7 days a week from 8 am to midnight, we are committed to assisting you in making the right choice. There is a questions and answers section at the bottom of every single heater on our website and we have dedicated staff answering online inquiries. We've also compiled an educational series called "Tankless 101," that dives a little deeper into tankless water heater technology. We cover topics like "what tankless water heaters are," "how tankless works," and "whether or not it'll work for you," to name a few. We live and breath tankless water heaters, and it is our goal to share decades of knowledge with you, long before you become our customer. At Tank The Tank, we believe wholeheartedly that our best customers are informed customers and we dedicate ourselves to that end, first and foremost.

What we are not a department store.

We are not a hardware store. We are not a lumber store. We are not an online retailing giant. We are not an individual peddling goods out of the trunk of a car.

We are industry professionals, situated in an open-to-the-public, brick and mortar store, who have masterfully developed a laser-focussed dedication to one topic...

Tankless Water Heaters