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B&Q£1,443.91Visit shop B&Q - Assure 250Sr Systemready Indirect Unvented Hot Water Cylinder 7737277
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The Baxi Assure 250SF SystemFit Indirect Unvented Hot Water Cylinder is designed for homeowners seeking reliable, efficient, and environmentally conscious hot water solutions. Its key benefit is significantly reduced installation time due to pre-plumbed and pre-wired components, along with an integrated internal expansion system that negates the need for external vessels. A potential caveat to consider is the specific space requirements for its dimensions (H: 1738mm x W: 630mm x D: 720mm). This cylinder offers market-leading performance and affordability, backed by a 10-year warranty, ensuring peace of mind.
| Model Part Number | 7737277 |
|---|---|
| Brand | Baxi |
An indirect cylinder uses a heat exchanger coil inside it, heated by an external source like a boiler, to heat the stored water. 'Unvented' means it operates without an open vent pipe to the atmosphere, requiring safety devices to manage pressure.
You need a boiler that can provide sufficient heat output to the indirect coil. Most modern domestic boilers are suitable, but it's best to check the boiler's specifications against the cylinder's heating requirements.
The cylinder comes pre-plumbed and pre-wired with most connections and safety features already installed, significantly speeding up the connection process for the installer.
It means you do not need to install a separate, external expansion vessel to accommodate the expansion of water when heated. This saves space, reduces installation complexity, and lowers material costs.
The Baxi Assure SystemReady cylinder comes with a 10-year warranty for peace of mind.
The dimensions are Height: 1738mm, Width: 630mm, and Depth: 720mm.
Due to the unvented nature and safety requirements, installation must be carried out by a qualified heating engineer familiar with unvented systems.
Check the boiler is firing and heating the water. Verify electrical supply to the cylinder's controls (if applicable). Ensure the thermostat is set correctly. Check for any closed isolation valves on the heating circuit.
Immediately turn off the water supply and isolate the heating source. Contact a qualified engineer to inspect and repair the leak. Do not use the system until repaired.
Gurgling or banging noises can indicate air in the system. Bleed the heating circuit or hot water system as per standard practice. If noise persists, consult an engineer.
Check the mains water pressure and ensure no other outlets are drawing water. Inspect the inlet control valve on the cylinder. If issues persist, contact a plumber.
Setup: The Baxi Assure SystemReady cylinder is designed for rapid installation. It requires connection to a compatible indirect heat source (e.g., a boiler), mains cold water supply, and a hot water distribution system. All necessary connections are pre-fitted, including safety devices. Professional installation by a qualified heating engineer is strongly recommended due to the unvented nature of the system.
Compatibility: This indirect cylinder is compatible with most domestic boilers (gas, oil, biomass) that can provide sufficient heat output. It requires a suitable pressure and temperature relief valve system, which is integrated. Ensure your heating system's boiler has adequate capacity to heat the chosen cylinder volume efficiently.
Care: Routine maintenance involves checking the pressure relief valve periodically as per manufacturer guidelines. Annual servicing of the connected boiler and heating system is recommended. The exterior of the cylinder can be cleaned with a soft, damp cloth. Avoid abrasive cleaners. Ensure the area around the cylinder remains clear for ventilation and access.
