Whirlpool Direct Vent 40-Gallon Natural Gas Water Heater
Model NU40T-DVT-403
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Price as of Apr 2026
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Btu
50000
Venting
Direct Vent
Fuel Type
Natural Gas
Tank Type
Tank
Energy Factor
0.69
Warranty Years
6
Whirlpool Direct Vent 40-Gallon Natural Gas Water Heater Review
The Whirlpool Direct Vent 40-Gallon Natural Gas is Whirlpool's direct-vent 40-gallon gas tank, built by A.O. Smith with Whirlpool branding for Lowe's channel.
Specs: 40 gallons stored, 40,000 BTU input, UEF 0.67, 70-gallon FHR, 6-year tank and parts warranty. Sealed direct-vent PVC venting.
Direct-vent design uses sealed combustion with separate intake and exhaust pipes. Common in tight air-sealed homes, mobile home installations, or tight closet spaces where atmospheric vent backdrafting risk is real.
About $799 at Lowe's, $1,700 installed including direct-vent piping.
Full Specifications
Brand
Whirlpool
Model Number
NU40T-DVT-403
Btu
50000
Venting
Direct Vent
Fuel Type
Natural Gas
Tank Type
Tank
Energy Factor
0.69
Warranty Years
6
Capacity Gallons
40
First Hour Delivery
72
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