High-EfficiencyENERGY STAR
GB142-45
by Buderus · GB142 series
4.6(29)
Efficiency
95%
AFUE
Output
145k
BTU/hr
Turndown
4:1
modulation
Warranty
10
yr exchanger
The GB142-45 is a high-efficiency boiler best suited for larger homes wanting premium efficiency. It delivers 95% AFUE efficiency with a 4:1 turndown ratio, backed by a 10 years heat-exchanger warranty.
Key features
- High-output condensing
- Logamatic weather control
- Durable exchanger
Technical specifications
Boiler typeHigh-Efficiency
FuelNatural Gas
AFUE efficiency95%
Heat input range31,000 – 153,000 BTU/hr
Heat output145,000 BTU/hr
Turndown ratio4:1
VentingDirect vent (PVC/CPVC)
Dimensions (H×W×D)28" H × 17" W × 12" D
Weight134 lbs
ENERGY STARCertified
Warranty coverage
Heat exchanger
10 years
Parts
5 years
Labour (via installer)
1 year
Installed price range
$6,400 – $8,200
Unit only: $4,400 – $5,400
≈ $127/mo · 60 mo @ 6.99% APR
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For the GB142-45