CombiENERGY STAR
Greenstar 151 Combi
by Bosch · Greenstar series
4.5(58)
Efficiency
95%
AFUE
Output
143k
BTU/hr
Turndown
7:1
modulation
Warranty
10
yr exchanger
The Greenstar 151 Combi is a combi boiler best suited for mid-size homes with combi heating. It delivers 95% AFUE efficiency with a 7:1 turndown ratio and 5.0 GPM of domestic hot water, backed by a 10 years heat-exchanger warranty.
Key features
- Higher DHW output
- Wall-hung combi
- Quiet operation
Technical specifications
Boiler typeCombi
FuelNatural Gas
AFUE efficiency95%
Heat input range22,000 – 151,000 BTU/hr
Heat output143,000 BTU/hr
Turndown ratio7:1
Domestic hot water5.0 GPM
VentingDirect vent (PVC/CPVC)
Dimensions (H×W×D)28" H × 17" W × 12" D
Weight88 lbs
ENERGY STARCertified
Warranty coverage
Heat exchanger
10 years
Parts
5 years
Labour (via installer)
1 year
Installed price range
$5,200 – $6,800
Unit only: $3,200 – $4,000
≈ $103/mo · 60 mo @ 6.99% APR
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For the Greenstar 151 Combi