Client: Fieldens OTR

Location: Stowmarket, Suffolk

Client Background:

Fieldens OTR is a leading manufacturer of specialist products, committed to maintaining high operational efficiency and ensuring optimal working conditions for its staff. In their newly constructed poly-tunnel type building, maintaining stable temperatures was vital for both staff comfort and consistent production quality.

The Challenge

The poly-tunnel style building, while functional for manufacturing, presented significant temperature control challenges:

  1. Winter: The vast, open structure made it difficult to retain heat, leading to cold working conditions that could hinder productivity.
  2. Summer: The building’s fabric caused it to overheat during warmer months, creating uncomfortable and potentially unsafe working conditions.

The client required a cost-effective, energy-efficient solution that would provide stable temperatures year-round, without compromising the building’s layout or operational flow.

The Solution

After conducting a full site assessment, we recommended installing 7 x Fujitsu high-capacity wall-mounted systems. These units were linked to a single wall-mounted controller to allow centralised management of the entire system.

Why Fujitsu Wall-Mounted Systems?

  • High Capacity: Each unit delivers robust heating and cooling performance, ideal for large, open spaces.
  • Centralised Control: The single controller ensures easy operation and consistent temperature regulation throughout the building.
  • Energy Efficiency: The systems feature advanced inverter technology, leading to reduced energy consumption and lower running costs.

All external units were installed on an adjacent wall, directly opposite the internal units, to minimise pipework and improve system efficiency. To maintain a clean and professional appearance, all external pipework was housed within a white decorative conduit.

Installation Process

  1. Site Planning:
    • Mapped unit locations to ensure even coverage and eliminate hot or cold spots.
    • Selected positions to reduce pipework length and optimise energy efficiency.
  2. Installation:
    • Fixed base plates to the walls for secure unit placement.
    • Cored through the building structure to run pipework from internal units to the external wall.
    • Installed decorative conduit to neatly conceal external pipework.
  3. System Commissioning:
    • Vacuumed and pressure-tested pipework for system integrity.
    • Released refrigerant and ran full system tests to ensure optimal performance.

Challenges & Solutions

  • Building Structure: The poly-tunnel design posed insulation challenges. By selecting high-capacity units, we ensured consistent temperature control even in extreme conditions.
  • Operational Flow: The client needed minimal disruption to manufacturing setup. We carefully coordinated the installation schedule to avoid downtime.
  • Aesthetic Finish: Despite the industrial nature of the site, the client wanted a neat finish. The use of white decorative conduit kept all external pipework tidy and discreet.

The Outcome

The newly installed air conditioning system now ensures a stable working environment across all seasons, improving staff comfort and maintaining ideal manufacturing conditions.

Key Benefits:

  • Year-Round Temperature Control: Staff can work comfortably regardless of external weather conditions.
  • Operational Efficiency: Consistent climate control helps maintain optimal production processes.
  • Energy Savings: Centralised control reduces unnecessary energy consumption, leading to cost savings.

Final Thoughts

Both projects demonstrate our commitment to delivering tailored climate control solutions that balance functionality, aesthetics, and cost-efficiency. Whether it’s a retail space aiming for a premium customer experience or a manufacturing site requiring optimal working conditions, our approach ensures long-term results that clients can rely on.

If you believe that your air conditioning unit requires an immediate service or could benefit from a deep clean, get in touch with our expert team at I-HT Air Conditioning by calling 01787 220202 or emailing us.

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phu ha bui profile picture
phu ha bui
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Fitting nicely, the gentleman did very good job. Very tidy and patient
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Howard Cox profile picture
Howard Cox
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Air Con was something I have been considering for a few years, 2026 made the decision for me. I thought it would be expensive, complicated and messy! I was wrong. I-HT visited, did a survey, explained the solution and then quoted. I was impressed with the team. The quote was competitive and the installation clean, professional and drama free. Highly recommended
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james birch profile picture
james birch
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Great experience all the way from the first phone to the final instillation (even after 5 heat waves and a world wide stock shortage totally getting in the way). Office kept me up to date and didn't get annoyed (I'm assuming) at my questions during the UK wide stock shortage (see heat wave). The guys that come and fitted the equipment all on time very polite and always up for answering a question or 5!.. Everything explained and demonstrated brilliantly. Couldn't be happier with the service provided.
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Andrew Hill profile picture
Andrew Hill
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Great team who did a very professional job installing our Air Conditioning. Very happy to recommend them.
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K A profile picture
K A
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It's always good to go on a recommendation and we did so from friends who had used I-HT. We have no hesitation in passing that recommendation on - really pleased, first class!
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Steve Lincoln profile picture
Steve Lincoln
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Great service from everyone at I-HT. From the initial enquiry, quote and installation, everything was brilliant. The installers and electricians did a great job on the hottest day of the year, which included crawling around in our loft which must have been 40c ! They left everything very tidy. We are now enjoying cool air in the long hot summer. Thanks again.
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James Hague profile picture
James Hague
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After thoroughly explaining how it would look both inside and outside the installation was very neatly done with no damage to the decor. We were shown how to use the remote and helped to download the app and shown how to control the unit remotely. We couldn’t be happier with the service
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Tracie Pelham profile picture
Tracie Pelham
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Really wish I’d had air con installed years ago. Finally went for it after a recommendation from my electrician. Lee came out really quick to do the survey even when in a heatwave. I was offered an installation date quicker than I thought as I was going for a single unit. I was pleasantly surprised with the price too. Michael was a top installer. Can’t believe how tidy he left it. Was cleaner than when he arrived 🙌 genuinely kind and diligent with his work. Was such a good experience he’s coming back in August to fit an upstairs one. Can’t get a better compliment than that. 10/10 I-HT and the office team. Thanks ☺️ very much
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Mr Squish profile picture
Mr Squish
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I had I-HT install an air conditioning system at home, the guys who came round were great, very punctual and completed the install in around 4 hours and left the place clean and tidy. Installation was extremely neat and professional, and would recommend them over any other. You may find cheaper quotes, but you do not want to cheap out when it comes to a quality job and on going customer service. On that note, they were not expensive - just a fair price for outstanding work and customer service.