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HEATSTAT T2 DN20 Thermostatic mixing valve DN20


Including check valves. In bronze finish. Product Reference T20-10B and drawing D9310. To be installed according to the manufacturer's instructions and commissioned in accordance with water regulations and bylaws using the Horne T20 Flushing kit.

Designed and manufactured by Horne Engineering Ltd.

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A DN20 Thermostatic mixing valve for supplying temperature controlled warm water to baths or bathrooms in low supply pressure or gravity fed domestic hot water systems.

As a TMV2 Scheme Approved thermostatic mixing valve, the Heatstat complies with the requirements of the Building Regulations, Part G: Danger from Heat.

Horne Engineering Ltd: Delivering Safe Hot Water


  • High performance TMV2 Scheme approved thermostatic mixing valve, which delivers accurate and reliable temperature control under varying supply temperatures and pressures
  • Factory set to 46°C (gives maximum mixed water temperature of 48°C)
  • Suitable for installation in any orientation
  • Rapidly cuts hot water flow in event of cold water supply failure to prevent scalding

Standards and Approvals

  • The Heatstat T2 DN20 TMV is approved under the Buildcert TMV2 Scheme to BS EN 1111 and 1287, Thermostatic mixing valves for domestic premises
  • All materials in contact with water are WRAS approved
  • All HORNE products are manufactured under our Quality Management System to BS EN ISO 9001:2015. Certificate No. FM 01224

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