Freeze protection fluids — NEVER use automotive or standard glycol antifreeze, even glycol made for hydronic systems. Use only freeze-protection fluids recommended in the Ultra Boiler Freeze Protection Supplement. Follow all guidelines in the Ultra Boiler Freeze Protection Supplement. Thoroughly clean ...
The absence under specific boundary conditions of a working fluid running within the collectors allows to avoid the use of antifreeze agents; in addition, due to the unpressurised operation, the adoption of ancillary equipment such as pressure gauge, expansion tank and pressure relief valve is not...
- Unique patent Heating Element, 98% efficient - Sealed system (Water and electricity separation system) - Near silent in Operation - Suitable for underfloor heating and radiator - Suitable for Central Heating - Constant temperature - Humann...
Maximum antifreeze content is 50% for the Vitodens 222-F boiler. Do not use antifreeze other than specifically made for hot water heating systems. System also may contain components which might be negatively affected by antifreeze. Check t...