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Thema CONDENS F30E Reviews (Combi Condensing)

Our rating: 4/5thumbthumbthumbthumbthumb
Efficiency rating: 91.6%*A Rating
Average householder rating: 1/5
Average installer rating: Not yet rated. Use the “comments & reviews” section below to be the first!

Saunier Duval Thema CONDENS F30E

The highly-recommended Saunier Duval Thema CONDENS F30E combi boiler is a leading product within the heating industry as it benefits from many energy-saving features. Founded in 1907, Saunier Duval is one of the first heating companies to manufacture and design combination boilers in the United Kingdom.


Having been designed using the latest in heating technology, the Saunier Duval Thema CONDENS F30E combi boiler is an extremely efficient and reliable product which can help the homeowner make substantial savings and reductions in their monthly energy bills. Applying the latest in research and development, The Saunier Duval Thema CONDENS F30E combi boiler has been designed to be an ultra efficient combination boiler which protects our environment as well as helps homeowners save money. The Saunier Duval Thema CONDENS F30E combi boiler, together with other Saunier Duval products, are recommended by the Energy Saving Trust. Saunier Duval is also a member of the heating and hotwater information council or HHCI.


Here are some advantages of choosing and buying the Saunier Duval Thema CONDENS F30E:


  • Easy to use digital display
  • 24 Hour timer on Combi models
  • Compact dimensions
  • Low lift weight
  • High-efficiency condensing storage combination boiler with a SEDBUK A rating
  • Built-in filling loop and Integral by-pass
  • High Grade Stainless Steel heat exchanger
  • Frost Protected
  • Zero compartment ventilation
  • Multiple and versatile flue options
  • Extensive fault codes
  • Daily Pump spin exercise

    • The technical specification of the Saunier Duval are Thema CONDENS F30E:


  • Height 742mm
  • Width 410mm
  • Depth 370mm
  • Net weight 40.5kg
  • Heating output max (kW) 23.6 kW
  • Maximum system capacity (75°C) (l) 160 liters
  • Max supply pressure (bar) 0.5 bar
  • Maximum usage capacity (kW) 29.6 kW
  • Threshold flow rate (l/min) 12 l/min
  • Internal diameter of the horizontal suction cup 100
  • External diameter of the horizontal suction cup 100

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    Comments & reviews

    By Martyn on 20 Oct 11
    Householder rating
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    It is appalling that Saunier Duval are allowed to sell this piece of junk! The Thema Condens 30FE worked fine for just over 12 months, then started losing pressure daily. After Saunier Duval refused to repair it as it was past the 12 month warranty, I paid them to repair it. Worked fine for 12 months, then started losing pressure. Now have to top up pressure every hour. Saunier Duval want nothing to do with it. DO NOT BUY ONE OF THESE!

    By arlene mcpherson on 02 Nov 11
    Householder rating
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    As Martyn says - DO NOT BUY ONE OF THESE! We aslo purchased the Thema Condens F30 E - and have regretted it ever since. Within the first 12 months it broke down and parts reploaced under warranty were display board,, printed circuit board, domestic heat exchanger, domestic hot water sensor and both the sensor temperatures.This was within the first 6 months. 7 months later it broke down again - they refused to repair free as it was now out of warranty, so we paid for more repairs. That was around 12 months ago - now it loses pressure weekly, sounds like a washing machine on spin cycle, and we've been told it needs a new pump - which I'm finding hard to source. I have only scored this 1 as there's no option for zero. NEVER AGAIN. Do not waste your money.

    By roddy hardie on 02 Nov 11
    Householder rating
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    See above - avoid avoid avoid. I too have all the same problems. combiboilerguide.co.uk - you should be ashamed of yourselves for recommending this awful product.

    By ian on 06 Jan 12
    Householder rating
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    found this page when looking for replacement sensor. totally agree with the above comments. same problmes as above. for 12 months perfect then problems. heat loss in shower. this is solved by removing and cleaning out the dhw exchanger. every winter once we start using the heating it loses pressure daily dropping from 1 bar to 0.5 overnight so i need to refill the water at 5 am as the unit won't work. AVOID.

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    * When review applies to a range of boilers, efficiency applies to best model in range. Always check with manufacturer.