Hot Water List

BOCK water heaters

6 basic models and 6 listed models.

Certified figures by basic model

BOCK basic models and their certified figures
Basic modelTypeStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyModel numbers
32 E Oil storage 300.6412578% 32 E
32PPC Oil storage 300.6816580% 32PPC
33E Oil storage 300.6714075% 33E
RE230LN*-***** Electric storage 260.924198% LE30-2-***
RE240LN*-***** Electric storage 340.924598% LE40-2-***
RE250LN*-***** Electric storage 430.926198% LE50-2-***

A range means the models under one basic model differ. A dash means the model has no such figure.

This brand's highest UEF, the energy that reaches the water for each unit used, is 0.92. A UEF of 0.92 means less energy went into the water than was used. The highest UEF is shared by 3 basic models, among them the RE230LN*-*****.

Its basic models are electric storage and oil storage water heaters. Its basic models split evenly, with 3 of each type. The 32PPC holds this brand's highest first-hour rating: 165 gallons. In the test, a full tank reheats while those 165 gallons are drawn.

Among the 117 brands on this site, 53 list more model numbers than BOCK. Of the other brands, 2 list at least one of this brand's basic model numbers. Of those, Bradford White lists the most: 3 of this brand's 6.

Basic models shared with other brands

BOCK basic models also listed under another brand
BrandShared basic models
Bradford White3
JETGLAS3

Updated Oct 26, 2026 · Methodology