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Dimplex 403TSTi Convector Heater - White

Product Specification

Key Information

Dimensions (H)44.3 x (W)73.3 x (D)20.0
Heat Output 3000 Watt
Heating Function Yes
Manufacturer Warranty 3 Year
Manufacturer Warranty Domestic Use Only Yes
Number of Settings 2
Oscillation No
Power 3000 Watt
Safety Switch Off Yes
Thermostat Yes
Timer Yes

Features We Love

Operated By Remote Control No


Fitted With A Plug Yes

Product Detail

Brand Dimplex
Brand Dimplex
Category Heaters
Colour White
Convector Heater Yes
Dimensions (H)44.3 x (W)73.3 x (D)20.0
Freestanding Yes
Heater Type Convector Heater

What's In The Box

Remote Control No

Dimplex 403TSTi Convector Heater - White

Delivery Delivery from Fri 17th Aug Delivery from tomorrow, 17th August From tomorrow, 17th August From tomorrow, Fri 17th August


We’ll deliver any product to your home, 7 days a week and even the next day.

  • We schedule deliveries from 7am until 7pm.
  • You can choose a paid morning or afternoon delivery timeslot when you checkout.
  • Free delivery is also available.
  • We’ll text you a 4 hour timeslot on the morning of your delivery.
  • We'll give you your driver’s number just in case there are any issues.
  • Your driver will attempt to call you when they're on the way.
  • Delivery restrictions apply. Please see our delivery page for more information.

Free next day delivery with Click and Collect

You don’t have to wait in to get this item, we can deliver your parcel to a local CollectPlus store.

  • With over 5,800 local stores across the UK, it’s likely there’s one close to your home
  • You can pick the item up at a time that’s convenient to you.
  • We’ll text you as soon as it’s ready to collect
  • You’ve then got 10 days to collect your item

△ The earliest delivery date may vary based on your postcode.
Finance Spend over £199 to pay on finance


If your order is £199 or more, you can spread the cost with our finance options.

We've got a couple of simple payment options to help you spread the cost. It takes just 10 minutes to apply and we'll give you a decision straight away. We offer:

  • 12-48 month finance agreements
  • Buy Now Pay Later - this lets you take a 6 month payment holiday.

Key Features

  • 3000 Watt power output
  • 2 heat settings to choose from
  • Thermostat constantly monitors temperature
  • Set the heat to turn on & off at a time that suits you
  • Automatic shut off system for peace of mind

Product Overview

This portable convector heater from Dimplex will warm your room. Thanks to the timer, you can set your heater to warm your bedroom before you wake up, or pre heat your front room before you get in from a hard day’s work. With 2 heat settings to choose from you can opt for a temperature that suits you, as well as saving energy. Plus it’s cheap to run too! The freestanding design means that you can easily move it from room to room with ease, so it’s really flexible. And, you can warm your room overnight without being disturbed as it’s super quiet.

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Questions and Answers

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Questions & Answers

Customer Reviews

4.4 / 5 7 Reviews
100% would recommend to a friend
Showing 6 of 7 reviews | See all
Female, 55 to 65, Couple from Newcastle

Heats the spot

We have a large conservatory and the 3kw heater is just what is needed, whilst it can easily be used at a lower setting. This was the only 3kw heater we found. Dimplex has a good reputation

Pros: Quiet, Ease to use, Good build quality, Value for money, Looks good Cons: None
Female, 45 to 54, Small Family from Basingstoke


Excellent heater. Looks good. I have an open plan House and wasn’t expecting this to make a huge difference to the big lounge. It heated it up quickly and even a little too warm. It’s a great product and worth the money

Pros: Value for money, Looks good
Male, 55 to 65, Couple from Perthshire

Good Effective Heater

The product arrived with a broken piece of plastic that covers the end corner of the unit. That said there appears to be no issue with the operation of the unit.

Pros: Ease to use, Looks good Cons: Noisy
Female, 45 to 54, Small Family from Lancashire

Get one !

I have ordered a total of three convector heaters over last month ... I've tested them all at hone and this one is by far the superior one . The heat it creates it fantastic . It heats the room up quickly and it's quiet too . The timer is great for cost saving and easy to override if you need to . It's sturdy and looks expensive . If I had to mark it down for anything .. then I'd say the removable pieces on the base could have better and stronger fittings . But if you need a heater for when it's really cold ... get one !

Pros: Ease to use, Good build quality, Looks good, Quiet, Value for money
Male, 45 to 54, Small Family from Stroud

Great heater

Good quality product that heats up quickly. The timer is easy to set and ensures the room is warm when you want it to be. Minimal self assembly required to put the feet on or to hang it on the wall.

Pros: Ease to use, Good build quality Cons: None
Male, 55 to 65, Couple from Liverpool


Bought it to warm the converted attic room when required for guitar practice and it does the job,however it is not as economic as advertised. Easy to mount on the wall. Not attempted the timer,looks complicated. Great service,delivered in less than 24 hours.

Pros: Looks good, Quiet Cons: Expensive
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Delivery from Fri 17th Aug Delivery from tomorrow, 17th August From tomorrow, 17th August From tomorrow, Fri 17th August
Product information
Finance Spend over £199 to pay on finance

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