Dunelm Heater Deal: Get a 500W Plug-In Heater for Under £3
Dunelm's '20p per hour' heater deal for under £3

As the January chill tightens its grip and energy bills remain a concern, a remarkable retail deal is offering significant relief. Homeware retailer Dunelm, in conjunction with cashback site TopCashback, is providing a path to purchase a popular plug-in heater for effectively less than £3.

The Budget-Friendly Heating Solution

The product at the heart of this offer is Dunelm's own 500W Plug in PTC Heater. Priced at £18, this compact device is designed to deliver targeted warmth using an efficient ceramic heating element. It features a digital thermostat for precise temperature control, along with timer functions and two fan speeds, allowing users to tailor its operation to their needs and potentially manage running costs.

While other retailers, like Amazon, sell similar electric heaters for around £50, this Dunelm model stands out for its affordability even before the special promotion. The key to the colossal saving lies in a welcome bonus for new members of the cashback website TopCashback.

How to Secure the Heater for Under £3

The process to claim the heater at a massively reduced price is straightforward but requires following specific steps. New members of TopCashback can sign up and claim a £15 welcome bonus. After this, they need to search for 'Dunelm' on the TopCashback site, click through to the retailer, and make a purchase of any item over £15 – such as the 500W heater.

Once the transaction is tracked and confirmed, the cashback is applied. For a brand-new customer to both Dunelm and TopCashback, the final effective cost of the heater plummets to just £2.69, a saving of £15.31. Existing Dunelm customers who are new to TopCashback can still get the heater for approximately £2.84.

Customer Reviews and Considerations

The heater has garnered positive feedback from many users focused on economical heating. One reviewer highlighted its use as a supplement to central heating, running several units set to 16°C continuously. Another customer, named Ken, endorsed its low running cost, stating it kept his bedroom warm for an estimated 20p per hour.

However, the product is not without some critical feedback. A small number of reviews mentioned issues, with one customer named Pat receiving a faulty unit that required a return, and another user reporting a device that stopped working after two weeks. As with any electrical purchase, checking the warranty and return policy is advised.

This limited-time offer presents a compelling opportunity for those seeking an affordable way to heat single rooms without relying solely on central heating. The deal, which combines Dunelm's January sale price with a TopCashback newcomer incentive, was highlighted on 6th January 2026 and remains a talking point for budget-conscious households this winter.