Bosch Greenstar Combi 100 ZWB28 Wall Mount Condensing Boiler 100K BTU

SKU: 7738100002

Weight	55 lbs
Dimensions	36 × 24 × 18 in

$7,284.98

In stock — available to order.

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Quantity	Unit price	Saving
1–4	$7,284.98	0%
5–9	$6,920.73	5%
10+	$6,556.48	10%

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Bosch Greenstar Combi 100 ZWB28 Wall Mount Condensing Boiler 100K BTU

Specifications & product details

Overview

Bosch Greenstar Combi 100 ZWB28 – High-Efficiency Condensing Boiler

The Bosch Greenstar Combi 100 (ZWB28) is a high-efficiency wall-mounted condensing combi boiler, delivering space heating and domestic hot water from a single compact unit. Designed for residential installations where efficiency, quiet operation, and space savings matter most.

With up to 95% AFUE efficiency, a wide modulation range, and an advanced Al-Mg-Si monoblock heat exchanger, this unit provides reliable performance with reduced fuel consumption and lower emissions.

Key Features & Benefits:

100,000 BTU max input
On-demand domestic hot water (2.65 GPM @ 72°F rise)
Wall-mounted space-saving design
Stainless steel pre-mix burner
Sealed combustion / direct vent
Integrated outdoor reset control
Natural gas or LP operation
Quiet, insulated cabinet
Ideal for residential retrofits or new construction

Factory new, installer-ready, and built to Bosch engineering standards.

Product details

Part / SKU	7738100002

Package includes

Bosch Greenstar Combi 100 ZWB28 Wall Mount Condensing Boiler 100K BTU

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.

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