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Ideal 176870 Plate Heat Exchanger Kit

Ideal

Ideal 176870 Plate Heat Exchanger Kit

Ideal 40kW plate heat exchanger (176870) for Ideal domestic heating appliances, transferring heat between the primary and domestic hot water circuits.

At a glance

  • Part type: Heat exchangers
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
IDEAL176870
Showing prices

£124.80

£104.00 ex. VAT · VAT at 20%

In stock
Order within 8m for same-day dispatch
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Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Ideal 176870 is a 40kW plate heat exchanger manufactured for Ideal domestic heating appliances. It is a brazed stainless steel plate pack that transfers heat between the primary circuit and the domestic hot water circuit, so the appliance can deliver hot water on demand without a stored cylinder. The unit sits within the hydraulic section of the boiler and is sized at 40kW to match the appliance's hot water output.

Signs this part needs replacing

  • Domestic hot water runs hot then cools, or fluctuates between hot and cold during a draw-off
  • Reduced hot water flow rate at the tap compared with the appliance's normal performance
  • Scale or debris blocking the plate channels, common in hard water areas
  • Water weeping from the plate pack or from the seals where the exchanger meets the manifold
  • The appliance locks out or reports a hot water fault code during a demand for domestic hot water

Before you order

  • Confirm the part number on the appliance data badge matches IDEAL176870 before ordering
  • Check the appliance model and, where shown, the GC number against the compatibility information for your unit
  • Inspect the seals and gaskets at the exchanger connections and replace them if they are compressed or perished
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.