Ideal Heat Exchanger Assembly Kit 30/40 176220

The Ideal 176220 is a heat exchanger assembly kit manufactured for the Ideal Commercial range of gas-fired boilers. It sits at the core of the appliance, transferring heat from the combustion products into the circulating system water before the flue gases are discharged.

The kit is listed against the Evomax and Instinct Heat commercial families, where it supports consistent heat output and stable operating temperatures across the range. It is a serviceable component, so replacement is normally carried out when performance drops or when a leak or blockage is identified during a service visit.

• Reduced or uneven heat output from the boiler despite correct burner operation
• Water weeping from the heat exchanger body, seals or surrounding joints
• Overheating faults or repeated high-limit trips during normal running
• Kettling, rumbling or banging noises from the appliance as it heats up
• Visible scale, sludge or corrosion build-up on the exchanger surfaces during inspection

• Confirm the GC number on the appliance data badge matches one of the numbers listed above before ordering.
• Check the existing part number on the removed component against 176220 and the alternative number 1782166.
• Inspect the seals and gaskets on the exchanger connections and replace them where they show signs of hardening or damage.
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.