Boilers: Compare features & prices Grant Vortex Pro External combi 21e review

The Vortex Pro External Combi e is Grant's latest version of their successful Vortex Outdoor Combi boiler range. The 'e' or 'electronic' range incorporates several additional features, including diagnostic indicator lights and an internal condensate trap. These oil-fired boilers are designed for installation outdoors, saving you valuable space in your kitchen. We summarise the Grant Vortex Pro External Combi 21e's key features below, to help you work out whether this is the right boiler for your home.
Sign up to access the full review

  • Reviews of 283 boilers: combination, system and heat-only.
  • 27 Best Buy boilers from reliable brands that please their customers
  • Reviews of boilers from 10 companies.

Boiler reviews you can trust

In this review you will find out if this boiler is suitable for your home, how it compares to other boilers in terms on efficiency, reliability, size and weight as well as what owners think of it. As well as compiling all of the boilers key specifications we conduct a survey of thousands of members every year so that we can tell you how reliable boilers are from each brand and also how satisfied our members are with boilers from each brand. 

Which? is independent - we work for you, the consumer, so you can be sure that our product recommendations are influenced only by our test results. We don't take advertising and we buy all the products that we test ourselves, so our advice helps you to make the right choice first time and avoid costly mistakes.

More ways to save money

Which? reviews thousands of products and services each year, shedding the light on the best and worst and helping you with your everyday decisions. With advice and reviews on everything from energy suppliers and high street shops to laptops, cars and coffee machines, Which? can help you save money.

Try a £1 trial membership, and you'll recieve access to all our online content and get Which? magazine delivered monthly to your door. You can also phone our Which? Legal services in your area for one on one help, plus you'll get access to Which? Local, where members share recommendations for the best services in your area.

Existing subscribers login now

Grant Vortex Pro External combi 21e

  • Launch date: Oct 2009
  • Type: Oil
  • Which? score: Subscribe
Typical price
£2,000.00
What is this?
Specification
Fuel type Oil
Type of boiler Combi
Heat output band (kW) 21.0
View full specification