- Delivers 67-gallon first hour rating
- 36,000 BTU input atmospheric vent design delivers up to 0.59 Uniform Energy Factor
- Standard atmospheric vent installation with 3" or 4" B-vent, no power required
- Patented eco-friendly Green Choice® Gas Burner design reduces NOx emissions by up to 33% and complies with Low-NOx emission requirements
- Push-button piezo ignitor makes lighting pilot fast & easy
- Patented Blue Diamond® glass tank lining protects against corrosion
- DynaClean™ automatic cleaning system protects against sediment build-up
- Stainless steel CoreGard™ anode rod protects against corrosion longer than ordinary anodes
- Commercial-grade brass drain valve for durable and easy operation
- 10-year limited tank and parts warranty
The ProLine® 400/401 Series gas water heater is designed to deliver an economical performance that can lower your energy bills and also provide long-lasting value.
Featuring a 40-gallon (nominal) tank and a 36,000 BTU propane burner, the XCRL-40 (LP) Standard Vent delivers a first hour rating of 67 gallons and a recovery rate of 41 gallons per hour. With an 0.59 Uniform Energy Factor, this water heater is not ENERGY STAR® certified. It carries a 10-year limited tank warranty, and meets Low NOx emission requirements.
A. O. Smith’s ProLine® water heaters are residential products built to commercial-grade standards and are only available for purchase through professional wholesalers and contractors.
Residential ProLine® Series Atmospheric Vent Application and Installation
Residential ProLine® Series Atmospheric Vent Lighting the Pilot
Residential ProLine® Series Atmospheric Vent Draft Test
Residential ProLine® Series Atmospheric Vent No Hot Water
Residential ProLine® Series Atmospheric Vent Status Code 1 Flash
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Residential ProLine® Series Atmospheric Vent Status Code 4 Flash
Residential ProLine® Series Atmospheric Vent Status Code 5 Flash
Residential ProLine® Series Atmospheric Vent Status Code 7 Flash
Residential ProLine® Series Atmospheric Vent Status Code 8 Flash
Residential ProLine® Series Atmospheric Vent Status Code Light Continuous