Features
It’s the EASIEST boiler you’ll ever install because it’s the MOST ADVANCED boiler ever made.
95% AFUE efficiency, stainless steel heat exchanger & Grundfos circulation pump included. Natural Gas or LP. 2″ Vent.
**Combination boiler (domestic hot water up to 3.7 GPM)**
- No-touch combustion setup – engineered for 5-minute start-up
- Self-diagnostic boiler control with rate-based temperature reset (no outdoor sensor required)
- Three-side service access – front and side panels remove fast
- 2-step natural gas-to-LP conversion – no kits or additional parts required
- Wall-hanging design with pre-installed bracket (floor stand optional)
- Automatic self-calibration adjusts to environment, component wear, and gas/vent pressure
- Low gas pressure capability (2.5 in. wc gas, 8.0 in. wc LP)
- 5-year parts warranty / 12-year limited warranty on heat exchanger
- High altitude performance with zero or minimal derate
- Universal vent connection for CPVC or polypropylene
- Boiler flow safety switch (UL353)
Specifications
- Includes Grundfos 26-99 circulation pump & AltaFast Pipe pre-made primary/secondary manifold
- Highly recommended accessories – CPVC Vent Starter Kit (#107039-01), Condensate Neutralizer (#101867-01)
- Optional accessories – Bluetooth/Wifi Boiler Control Adapter (#111667-01), Floor Stand Kit (#111576-01)


