Installation of a new Vaillant system boiler, with an indirect unvented cylinder
Project Overview
- Client: Residential home in Woodford Green
- Property Type: 4-bedroom semi-detached house
- Heating System: System boiler and indirect unvented hot water cylinder
Client Requirement
The client required a more efficient and reliable heating system. Their existing setup, an old and inefficient regular boiler with a vented hot water cylinder, was becoming costly to maintain, prone to faults, and contributed to rising energy bills. They wanted a modern, energy-efficient solution that could also provide consistent hot water for a growing family.
Solution: System Boiler & Indirect Unvented Cylinder
After assessing the property and discussing requirements, the recommended solution was to install a system boiler paired with an indirect unvented hot water cylinder.
System Boiler: Chosen for its efficiency and compatibility with a sealed system. It supplies both space heating and hot water via the cylinder, eliminating the need for a loft-based feed and expansion tank.
Indirect Unvented Cylinder: Ideal for high-demand households, ensuring a steady supply of hot water. Heated indirectly by the system boiler, it stores a large volume of water, boosting efficiency and ensuring hot water is available whenever needed.
Project Execution
- Site Assessment & System Design
- Carried out a detailed survey of the existing system, pipework, and available space.
- Chose the best location for the new boiler and cylinder to maximise efficiency and accessibility.
- Boiler Installation
- Installed the system boiler in the existing boiler cupboard with minimal disruption.
- Integrated it with the home’s radiator network for even heat distribution.
- Unvented Cylinder Installation
- Fitted the indirect unvented cylinder in the airing cupboard.
- Designed an improved hot water distribution layout to deliver rapid response at all outlets.
- Connected the cylinder to the boiler via a primary circuit for efficient heat transfer.
- Safety & Efficiency Checks
- Installed safety valves, pressure relief valves, and expansion vessels in line with regulations.
- Flushed the entire system to remove sludge and debris.
- Commissioned the system with full pressure testing, burner checks, and performance verification.
- Final Adjustments
- Optimised boiler settings for maximum efficiency and comfort.
- Carried out thorough testing for both heating and hot water demand.
Outcome & Benefits
- Improved Efficiency: Significant reduction in energy bills compared to the old system.
- Constant Hot Water Supply: Reliable, uninterrupted hot water, even during peak usage.
- Increased Comfort: Even heat distribution and better temperature control throughout the property.
- Future-Proofing: A modern, efficient, low-maintenance system built to last for years.
Customer Feedback
"We couldn't be happier with the new system. The installation was quick and seamless, and we've noticed an immediate difference in our energy bills. The heating is more consistent, and we no longer run out of hot water during showers. It’s been a game-changer for our home!"
Conclusion
This project demonstrates the clear benefits of upgrading to a system boiler and indirect unvented cylinder, particularly for homes with higher hot water demands. The client not only gained a more efficient and reliable system but also made a long-term investment in comfort and cost savings.
