Product Description
The compact Potterton Sirius Three 250 floor standing condensing boiler is designed for flexibility, suitable for a whole range of projects of various sizes as a standalone unit or as part of a cascade installation. The Sirius Three has modulation ratios of up to 9:8, a robust stainless steel heat exchanger and an extremely low NOx rating as well as a gross seasonal efficiency of up to 97.5% and ErP A rating. Fitted with castors, this boiler unit is easy and stress-free to install.
Product Features
- Lowest NOx ratings on the market
- Modulation ratios up to 9:8
- Lightweight stainless steel heat exchanger
- Gross seasonal efficiency up to 97.5%
- Very compact design with castors on the bottom of larger output boiler
- Particularly suited to replacement projects in large domestic and small commercial properties
- For applications up to 440W
- Cascade output up to 1MW
- 5 Years warranty
Web Pack Includes
Boiler only