Our Top 10 Recommendations for Cheap Tankless Water Heaters
Up-to-date pricing and reviews for cheap tankless water heaters on the market
Bestseller No. 1
Hydro Master 3/4-Inch IPS Isolator Tankless Water Heater Service Valve Kit with Pressure Relief Valve, Clean Brass
- Lead Free Brass- Meets all federal & state standards for lead levels in drinking water system components
- 3/4-Inch IPS Isolator Tankless Water Heater Service Valves 500WOG, colored valve handles for easy identification of hot and cold valves
- Include a residential pressure relief valve (150 PSI/500,000 BTU)
- Certified by CSA Group
- Easy to Install
Bestseller No. 2
Happybuy Tankless Water Heater Propane 18L Propane Water Heater 4.8GPM 36 KW Propane Tankless WaterHeater Stainless Steel on Demand Water Heater Propane Fit for Home Outdoor RV Use
- 【SUPERB MATERIALS】- Power: 36 KW; Hot Water Output: 18 L/min(4.8 GPM); Gas Supply: LPG(Liquid Petroleum Gas); Water Temperature: 50 °F -140 °F; This tankless water heater propane is crafted with stainless steel case and inner copper devices, making it anti-rust, high-temperature resistant, no water leakage, and durable. Come with a portable shower head kit.
- 【6-IN-1 MULTI PROTECTIONS】- Our propane water heater is upgraded with six protection ways to ensure your security on the shower, such as Over 75℃(167 °F) protection, low water flow protection, anti-frozen protection, over water pressure protection, no flame protection, 20min timer, etc.
- 【EFFORTLESS CONTROL】- You can easily adjust the water temperature by rotating the gas & water knobs on the panel. Switch the summer/winter mode to change the fire row amount, and save 40% gas in your bill. The combustion device will reach ≥80.8% thermal efficiency to save 11.5% energy. Start at a 0.015 MPA low water pressure; normal working pressure is 0.02 MPA-0.8 MPA.
- 【WALL-MOUNT & DETAILS】- This gas water heater is light-weight & portable to be installed on the wall, tree, or outside the RV for space-saving. Well-selected devices are included like copper standard G1/2" hose connectors, filtration mesh, gas emission tube, and copper water tank. Ignite the heater with 2 "D"cell batteries, and no pilot light is needed.
- 【DIVERSIBLE USE SCENARIOS】- CE test passed, fast to heat, this propane hot water heater is perfect for showering, pet washing, outdoor cleaning, camping and trip road, etc. Provide you with constant hot water, especially in winter or cold places. Instant, endless hot water, enjoy a comfortable showering at any time & any location.
Bestseller No. 3
Superior Pump 91660 Tankless Water Heater Descaler Pump Kit, Black
- Superior Pump 91660 Descaler Pump Kit is designed to clean and descale most Tankless Water Heaters
- Descaler kit includes 1/6HP pump, 3.5 gallon pail with screw top lid, two 3/4-inch GHT X 6-foot stainless steel hoses, and 7oz non-toxic descaler powder
- 1/6HP Thermoplastic utility pump moves up to 1920 Gal. per hour; Will pump up to 20-feet of vertical height; Oil-free motor design
- 1-inch NPT discharge; Includes 3/4-inch garden hose adapter for use with stainless steel hose; 8-foot power cord CSA Listed; convenient carrying handle
- Non-clogging reinforced thermoplastic impeller; Handles up to 1/8-inch solids; Stainless steel fasteners; Bottom screen filters out debris and is easy cleanable
SaleBestseller No. 4
Rheem RTEX-18 18kW 240V Electric Tankless Water Heater, small, Gray
- External digital thermostatic control with LED display (+/1 degree accuracy)
- Most advanced self-modulation, adjust power to meet hot water demand
- Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
- Simple installation – bottom 3/4 inch NPT water connections
- Threaded for easy replacement, simple installation, digital temperature display
Bestseller No. 5
Kelaro Tankless Water Heater Flushing Kit - Just add Vinegar Descaler
- Kit requires 2 gallons of white vinegar*** Not included. Some tankless manufacturers recommend using vinegar or another cleanser for flushing their equipment. Can also save money if you have vinegar at home already.
- Helps maintain the performance and extend the life of your tankless hot water heater. Easy directions for DIY Homeowner use.
- Includes 1/8 HP Utility Pump, 6 Ft Color Coded Hoses, 3.5 Gallon Bucket with EZ Open Lid & Instructions for using vinegar. Peel Off Lid is super flexible and much easier to remove than traditional paint bucket lids.
- Easily connects to tankless isolation valves using supplied 6' Color Coded Hoses.
- Works with Rheem, Bosch, Noritz, Rinnai, Takagi, Navien, Stiebel, Atmor, Ecosmart, Eccotemp, Marey Power, Tempra, Trutankless and others.
Bestseller No. 6
Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, GRAY
- External adjustable digital thermostatic control with LED display (+/1 degree accuracy
- Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
- Simple installation – 1/2 NPT adapters included; side 1/2 inch Compression water connections
- 99.8% energy efficient. External controls to adjust temperature in increments of 1°f. Water-Saver Shower Head – 1.5 GPM
- Threaded for easy replacement, simple installation, digital temperature display 54 A. 13kW Model Flow Rate: up to 3.17 GPM
SaleBestseller No. 7
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
- Endless On-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature
- Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 11.5 x 8 x 3.75 inches
- Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used.
- EcoSmart ECO 11 Sizing; 13-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications; provides between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature; refer to the sizing guide to select the proper solution
- Warranty and Certifications; Lifetime Warranty on electronics, exchanger and element; UL-499 certified; ETL Listed
SaleBestseller No. 8
EcoSmart ECO 27 Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology,White
- Savings of up to 50% on water heating costs. Dimensions :17H x 17W x 3.625D inches ;Pipes fittings :3/4 inch NPT
- Digital temperature control in 1-degree increments allows control of hot water; Activation Flow: 0.3 GPM
- Copper and stainless components designed for efficiency, durability and easy replacement.
- Compact size saves valuable storage space, while the stylish and advanced design is pleasing to the eye and Copper and stainless components designed for efficiency, durability and easy replacement.
- Prior to purchase & installation, please verify that this model is the right size for your hot water needs and electrical requirements. Electrical requirements: 27 kW, 240 volts, (3) 40 required breakers, 112.5 maximum power (AMP), (3) 8 required wire.Amperage Draw:113 A
SaleBestseller No. 9
Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
- ON/OFF Dial Control with adjustable digital temperature display
- Self-modulating power control
- 24kW Model Flow Rate: up to 5.9 GPM for RTEX-24
- Bottom 3/4" NPT water connections
- On demand, consistent and continuous hot water
Bestseller No. 10
Kelaro Tankless Water Heater Flushing Kit with Flow-Aide Biodegradable Descaler with Rubber Hoses
- Helps maintain the performance and extend the life of your tankless hot water heater.
- Everything you need in one kit to descale your tankless water heater in 45 minutes or less | Suitable for DIY Homeowner use with easy directions.
- Includes 1/8 HP Utility Pump, 6 Ft Color Coded Hoses, 3.5 Gallon Bucket with EZ-Off Lid, Instructions & Flow-Aide Biodegradable Descaler.
- Easily connects to tankless isolation valves using supplied 6' Color Coded Hoses
- Works with Rheem, Bosch, Noritz, Rinnai, Takagi, Navien, Stiebel, Atmor, Ecosmart, Eccotemp, Marey Power, Tempra, Trutankless and others