Pennco Silver 15B-120K 5 Zone 120,000 BTU Residential Cast Iron Natural Gas Boiler
Pennco Silver 15B-120K 5 Zone 120,000 BTU Residential Cast Iron Natural Gas Boiler
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Step Up To Reliable Whole‑Home Heat With The Pennco Silver 15B‑120K 120,000 BTU Cast‑Iron Hot Water Gas Boiler
Need a proven replacement boiler that’s easy to live with and easy to service? The Pennco Silver 15B‑120K is a compact, cast‑iron, chimney‑vented hot water boiler that delivers dependable comfort for baseboard and radiator systems. You get 84% AFUE efficiency, electronic ignition and a motorized vent damper to help cut standby losses, plus left‑ or right‑side piping and wiring flexibility to make change‑outs cleaner.
- Brand: Pennco
- MPN: 15B‑120K (15B Series K)
- Type: Gas‑Fired, Non‑Condensing Hot Water Boiler (Cast Iron, Category I, Chimney Vent)
- Fuel: Natural Gas (LP conversion kit available)
- Input: 120,000 BTU/h
- DOE Heating Capacity: 101,000 BTU/h
- Net AHRI (Water): 88,000 BTU/h
- AFUE: 84%
- Ignition: Intermittent Electronic with factory vent damper
- Venting: Built‑in draft diverter; 6" flue to a lined masonry or listed metal chimney
- Water Return/Supply: 1‑1/4" NPT
- Gas Inlet: 1/2" NPT
- Water Content: 2.8 gallons
- Electrical: 120V, 60 Hz; <12 A (15 A circuit recommended)
- Dimensions (W × H × D): 16‑1/4" × 32‑1/8" × 24‑1/8"
- Included: Vent damper, draft hood, jacket; parts kit with 30 psi relief valve, drain valve, T&P gauge, fittings
- Warranty: 20‑Year Limited heat exchanger (residential; see terms)
Compact, Cast‑Iron Durability
A rugged cast‑iron heat exchanger with dry‑leg end sections is pressure‑tested at the factory for long service life—ideal for traditional baseboard and radiator systems.
Fuel‑Saving Ignition & Vent Damper
The boiler’s electronic ignition fires only on a call for heat, and the motorized vent damper helps reduce standby losses compared with older standing‑pilot designs.
Flexible Left/Right Piping & Wiring
Water, gas, and electrical connections can be routed from either side of the cabinet, making change‑outs cleaner in tight mechanical rooms.
Low‑Profile Draft Diverter
The integrated draft diverter lowers overall height, so the 15B‑120K fits low‑ceiling basements where external draft hoods are a challenge.
Zoning‑Ready Hydronic Heating
Pair with zone valves or circulators (not included) to serve multiple heating zones (often five or more, depending on design). The 1‑1/4" tappings support common residential manifolds and near‑boiler piping layouts.
Product Brochure| Weight | 295.0 lb |
|---|---|
| Height | 32.13 in. |
| Horse Power | 1/3 |
| Length | 24.13 in. |
| Width | 16.25 in. |
| Inventory Number | PEN15B120K |
| MPN | 15B-120K |
