Advance Appliances 170 Litre Thermal Store Direct With Cold Section Single Coil (TSD 170)

The TSD 170 Litre Advance Thermal Store is designed for use with gas or oil boilers to deliver fast, safe and reliable mains‑pressure hot water throughout the home. The direct‑pattern (TSD) single‑coil model includes an integrated feed and expansion tank and must be installed above the radiator circuit, as system water is drawn directly from the store for rapid heat‑up.

The system requires two pumps:

• One dedicated to the boiler to maintain store temperature, controlled by the store thermostat

• One for the heating circuit, controlled by the room thermostat and heating programmer

Advance Appliances 170 Litre Thermal Store – Specification

• Capacity: 170 litres

• Dimensions: 600 mm diameter × 1475 mm height

• Guarantee: 10 years (2 years on components)

• Supplied with Hot Water Control Pack

• Simple, reliable technology – no PCB

• Direct version: Provides buffering and rapid radiator heat‑up

• Indirect version: Suitable for Y‑plan and sealed‑system boilers

• Delivers mains‑pressure hot water

• Safe open‑vented thermal store

The thermal store holds central‑heating water within the tank. Domestic hot water is produced at mains pressure via a powerful internal coil, delivering excellent shower performance and fast bath filling — with no pump required on the hot‑water side.

This model is a modern replacement for the Boilermate and Albion Mainsflow Direct systems.

Acting as a buffer, the thermal store reduces boiler cycling, improves efficiency and ensures rapid radiator warm‑up. These low‑maintenance, pre‑plumbed units deliver flow rates of up to 30 L/min and, when paired with a suitable gas, oil or LPG boiler, are ideal for medium to larger properties. The bottom coil must be pumped.

Each unit features a smart, wipe‑clean appliance‑grade finish and 60 mm foam‑injected insulation for maximum efficiency. Constructed from stainless steel, the cylinders are lightweight, durable and built for long service life. All models are manufactured in the UK and comply with the HWA Thermal Store Specification and Building Regulations.