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The Reliance Thermoguard Mixing Valve Unit is a premium solution for precisely blending and regulating water temperatures in underfloor heating (UFH) systems. Designed as a direct replacement for the discontinued Thermomix, this updated model (HEAT970366) brings enhanced performance, flexibility, and space-saving features to your heating setup.
With 3/4" female flow and return connections, it ensures wide compatibility with existing plumbing systems and is engineered for reliable, long-term performance.
Key Features
Exceptional Temperature Stability: Ensures stable and consistent output—even when return and mixed water temperatures are closely aligned—resulting in smooth and comfortable heating.
Flexible Installation Options: Can be configured for left or right-hand installation onto manifolds, offering maximum versatility for different plumbing layouts.
Low Temperature Functionality: Operates at temperatures as low as 25°C, supporting safe system warm-up and commissioning.
Compact, Slimline Design: Features a reduced side profile for easy fitting inside cabinets or cupboards, ideal for space-conscious installations.
Wide Adjustable Temperature Range: Allows blending from 25°C to 60°C, suitable for a range of floor constructions and heating requirements.
Technical Specifications
Hot Water Supply Temperature Range: 60°C – 85°C
Adjustable Mixed Water Temperature Range: 25°C – 60°C
Whether you're installing a new UFH system or upgrading from an older unit, the Reliance Thermoguard Mixing Valve delivers dependable performance, precise control, and a user-friendly installation experience—perfect for both residential and commercial heating applications.
At Underfloor Heating Direct, we strive to make every step of your order as easy and convenient as possible, from finding the right underfloor heating setup to best suit you to taking delivery of your system the very next day.
We're proud to offer a range of delivery options to suit you:
2-3 working days delivery
Next working day (Order before 4pm Monday - Friday)
Next working day before 12 noon (Order before 4pm Monday - Friday)
At Underfloor Heating Direct, our customers have 30 days to upgrade, replace or refund their orders.
Returns
At Underfloor Heating Direct, we want to ensure you are happy with every purchase you make. If you have any issues with your chosen product, whether damaged, faulty or simply an unwanted item, you can simply return what you bought for a refund.
Replacements
We take great care in the delivery of all of our products, however, in the event of your delivery arriving damaged or if you notice a manufacturing fault of any kind within 48 hours of delivery, you're within your rights to a replacement.
Upgrades
Within 14 days of purchasing from us, you are eligible to upgrade if you deem you want something a little better. Simply send it back to us brand new and we'll happily assist you with an upgrade to your order.
At Underfloor Heating Direct, we are committed to providing our customers with high-quality products and outstanding customer service. That's why we offer a comprehensive warranty on all of our underfloor heating products, with a 10 year warranty for our electric underfloor heating kits.
Our warranties are designed to give you peace of mind and ensure that your underfloor heating system operates reliably for years to come.
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