Viessmann is one of the world's leading boiler manufacturers and is widely regarded as the best condensing boiler on the market.
- The best heat exchanger in the industry (backed by the best warranty in the industry - a limited lifetime warranty)
- Viessmann designs, engineers, and manufacturers the components that go into their boiler to ensure quality
- Simple and straightforward installation
- Flexible venting options up to 200 feet of combined vent length