Rinnai I Series Plus IP175S Condensing Solo Boiler, 175,000 BTU

The Rinnai I Series Plus IP175S is a condensing gas boiler for space heating, rated at 175,000 BTU maximum input on natural gas or liquid propane. It can serve as a single boiler or as part of a cascade.

This model uses a new and improved heat exchanger and can be cascaded with up to 24 units for bigger loads. The boiler has four integrated zones, seven heating reset curves are available, and the quick set-up screen on the improved front display shortens commissioning. Smart Connect adds Wi-Fi remote access and Bluetooth through the Rinnai Central app.

Venting options are concentric, twin pipe or room air, with common venting of up to 8 units, and the unit is approved to 10,100 ft altitude. It holds 2.4 gal and uses 3/4 in. MNPT gas and water connections plus a 1/2 in. NPT condensate drain.

Highlights

• 175,000 BTU maximum input on natural gas or liquid propane

• Cascade up to 24 units; common venting up to 8 units

• Four built-in zones and 7 heating reset curves

• Wi-Fi and Bluetooth control with the Rinnai Central app

• 2.4 gal storage capacity with 3/4 in. MNPT gas and water connections

Specifications

Good to know

• Gas-fired appliance: it must be installed, vented and commissioned by a qualified installer in line with local codes and the manufacturer's installation manual.