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U.S. Craftmaster GCBL-30R 4**

U.S. Craftmaster GCBL-30R 4** is in the DOE listing as of Oct 26, 2026.

  • Gas storage water heater
  • 2 listed models

Not listed as ENERGY STAR certified on Oct 26, 2026.

Its figures are also listed under A. O. Smith GCBL-30R 4**.

Storage volume
29gallons
UEF
0.60Uniform energy factor
First-hour rating
65gallonsHot water in the first hour
See it among every gas storage model

Advertised and certified figures

U.S. Craftmaster GCBL-30R 4**: advertised and certified
U.S. Craftmaster GCBL-30R 4**: advertised and certified Size: advertised 30 gal, certified 29 gal (advertised nominal size, certified storage volume). Size: advertised 29 gal, certified 29 gal (certified storage volume). UEF: advertised 0.60, certified 0.60. First-hour rating: advertised 65 gal, certified 65 gal. Size · advertised nominal size, certified storage volume Advertised 30 gal Certified 29 gal Size · certified storage volume Advertised 29 gal Certified 29 gal UEF Advertised 0.60 Certified 0.60 First-hour rating Advertised 65 gal Certified 65 gal
FigureAdvertisedCertifiedAdvertiserRead
Size 30 gal, nominal size 29 gal storage volume U.S. Craftmaster Read Oct 5, 2026
Size 29 gal 29 gal storage volume U.S. Craftmaster Read Oct 5, 2026
UEF 0.60 0.60 U.S. Craftmaster Read Oct 5, 2026
First-hour rating 65 gal 65 gal U.S. Craftmaster Read Oct 5, 2026

Certified figures by listed model

Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
LG1F3032SBR 4*1290.606575%Medium
NG1F3032SBR 4**290.606575%Medium

UEF is the uniform energy factor. A dash means the model has no such figure.

It holds 29 gallons in the test, 1 gallon less than its 30-gallon sold size. It delivers 65 gallons of hot water in the test's first hour. Its tank holds 29 gallons, so reheating adds 36 gallons during the first hour. Among 763 gas storage models, 600 have a higher first-hour rating. The median gas storage model gives 78 gallons in the first hour of the test.

On Oct 26, 2026, this heater was not listed as ENERGY STAR certified. In the test, 40% of its energy does not reach the hot water (UEF 0.60). In the test, daily hot water use was set to medium (its draw pattern). Among 288 gas storage models on its draw pattern, 88 have a higher UEF. For its type and draw pattern, its UEF sits at the median. The water took in 75% of the energy used to reheat it (its recovery efficiency).

It is the basic model for LG1F3032SBR 4*1 and NG1F3032SBR 4**. Its test figures match those of 4 other basic models. Each of them is listed under a different brand. For the full group, see the A. O. Smith GCBL-30R 4**.

Also listed as

They carry every figure in the table above.

Updated Oct 26, 2026 · Methodology

Not covered

  • Changes to an advertised figure after the date beside it.