Overview
PROS
CONS
SPECS
Certification
Power Source
Flow Rate
BTU’s/hr
Voltage
Our Top Choice
Rinnai RUC98iN Natural Gas Tankless Water Heater
With 100 years’ experience, Rinnai is a trusted, innovative leader in home and commercial gas appliances. The RUC98iN Tankless Water Heater is both eco-friendly and money savvy.
.96 Energy factor. Space saving design. Low nitrogen oxide emissions. 199,000 max BTU.
Slightly higher cost. Reported problems with ignition.
ENERGY STAR®, AHRI, CSA
Gas
9.8 GPM
199,000 BTU
120V
Best Value
Stiebel Eltron Tempra 24 Tankless Water Heater
For 90 years Stiebel Eltron have been manufacturing quality heating appliances for your home. They pride themselves on making superior products which is evident in the Tempra 24 Tankless Water Heater.
No venting. Sleek design. Save at least 15% on hot water. If you need reliability and affordability, this could be the heater for you.
Reported issues with thermal switch.
ANSI/UL certified
Electric
Max : N/A, Min: 0.5 GPM
82,000 BTU
240V
Rheem Indoor Direct Vent Tankless Water Heater
Rheem has been around since 1925, standing the test of time and producing quality products. Their Direct Vent Water Heater provides instant hot water at anytime, anywhere in the house.
94 percent energy efficient. Electronic controls for both safety and performance. Low emission. Supports 38 feet of three inch PVC pipe.
High cost. Some problems with gas inlet connectors have been reported.
ENERGY STAR® certified
Natural Gas
Min: 0.4 GPM, Max: 9.5 GPM
199, 900 BTU
120V
Takagi Natural Gas Indoor Tankless Water Heater
Takagi has manufactured energy-efficient solutions for water heating for 60 years. This Indoor Tankless Water Heater is affordale, reliable and will provide enough power to heat water for the whole family.
140,000 BTU. 6.6 GPM maximum flow rate.
Average energy rating (.81). Warranty only valid if installed by technician.
ENERGY STAR certified
Natural Gas, Electric
6.6 GPM
140,000 BTU
120V
BOSCH Point-Of-Use Mini Tank Water Heater
Bosch is a multi-national company that’s been around for 100 years, so they know a thing or two about what they’re doing. Their Mini-Tank Water Heater is one of the most compact water heaters money can buy.
Easy to install whether in trailers, apartments or your home. Fast and easy installation. Shelf, wall or floor mounted. Fast recovery rate.
This is an under the sink water heater only.
Not stated
Electric.
6.8 GPH
Not stated
120V.