Girard 2GWHAM 42,000 BTU

Last updated: November 4, 2026

Girard 2GWHAM 42,000 BTU
2.2/5#18 of 19 in tankless RV water heaters
2.2

A tankless heater rated 42,000 BTU for endless hot water in an RV that has the cutout for it.

  • 42,000 BTUInput
  • PropaneFuel
Check price at Amazon$634.61

Price checked November 4, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • Heats on demand, so the hot water does not run out mid-shower
  • Established RV brand with parts and service in the trade
  • Draws under 3 A at 12 V
Cons
  • No published flow rate
  • Only a 1-year warranty
  • Over $600

How it scores

The rating comes from 3 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.

Specifications

Model number2022107534
Heat and water
Input capacity42,000 BTU
FuelPropane
12 V amp draw3 A
Fit
Weight23 lb
Warranty
Warranty1 year

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