Name: Rheem RTG-70DV
Brand: Rheem

A budget indoor heater from a major brand for a two bathroom home in a moderate climate.

Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros

Cons

Only 4.5 GPM at a 67°F rise, so cold climate homes get about two showers at once
Needs costly Category III stainless concentric venting
A 0.82 UEF uses more gas than a condensing model

The Rheem RTG family

Every Rheem RTG model we rank, smallest first. Ratings compare each against its own fuel.

Model	Heating power	Rating	Price
Rheem RTG-70DV (this one)	160,000 BTU/h	4.1/5	$653.77
Rheem RTG-95DV	199,900 BTU/h	4.1/5	$1,201.29

How it scores

The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its fuel. How we rank explains each one.

Heating
Model number	RTG-70DVLN-3
Fuel	Gas
Gas type	Natural gas or propane
Gas input	11,000 to 160,000 BTU/h
Max flow	7 GPM
UEF	0.82
Condensing	No
Installation
Venting	Indoor
Vent type	3 in x 5 in concentric Category III stainless
Weight	46.5 lb
Features
Built-in recirculation	No
Wi-Fi	No
Heat exchanger warranty	15 years
Parts warranty	5 years

A strong value outdoor heater for a natural gas home in a mild climate, with a better warranty than most budget rivals.

$499

A whole home indoor heater for buyers who want maximum burner size without the condensate drain of a condensing unit.

$1,201.29

A low cost indoor whole home heater for natural gas homes, but check the warranty with ThermoMate before buying.

$739.99