How is Inzonex different from insulation jackets or blankets?

Inzonex is an engineered modular system, not a loose jacket. Each cover is templated to the exact geometry — boiler doors, valves, dryer bodies, ironer roof panels, irregular fittings — where flat blanket suppliers stop. Stainless snap-button fasteners close it by hand with no tools or fixings into the equipment; the form-fitting build follows the surface so there are minimal folds where water, lint or chemicals could collect. The PAROC stone-wool core is independently replaceable; the outer shell is silicone (standard) or PTFE. The result looks tailored rather than a sack, and unclips for cleaning and inspection.

Where a laundry loses heat — and what it costs

Q: What temperatures are the main laundry surfaces?

Steam boiler doors and fittings run 120–190 °C; tumbler-dryer bodies run hot — top burner/combustion chamber ~115 °C, back ~120 °C, sides ~100 °C, front ~84 °C; flatwork-ironer tops run ~66 °C. Feed-water and condensate lines run ~90–102 °C. Each surface is modelled at its real operating temperature.

Q: How do you insulate a flatwork ironer when the roof must lift for maintenance?

The ironer roof is usually built from lift-off panels. We fit each panel with its own removable insulation module, so the insulation lifts together with its panel for maintenance access and refits exactly. No access is lost and the hot roof stops radiating into the hall.

03 / CASE STUDY · MEASURED

Innovate UK report PDF · 8 pages · August 2026

Turning down the heat: how Innovation Exchange is helping industrial laundries cut energy waste

Inzonex for the boiler house — its temperature fell 8 °C

A six-point FLIR grid across walls and ceiling, same load before and after, no ventilation upgrade. The heat that stopped leaving the metal stayed in the steam loop — and the room cooled.

28 → 20 °Cboiler house, 6-point grid

49.8 kWbare heat loss, measured

313 MWhsaved per year

28covers, all ≤45 °C

Inzonex was selected through the Industrial Laundry Thermal Energy challenge, delivered by Innovate UK Business Connect through its Innovation Exchange programme in partnership with the Textile Services Association. The challenge was initiated by a proactive team at Royal Jersey Laundry, one of London’s longest-established commercial laundry operators, who were looking for a thermal optimisation solution for their plant. It ended with the parts that flat lagging never fits — boiler back plates, economiser chambers, feed-water pumps, valves and manholes — covered by Inzonex, cutting fuel and taking 8 °C off the boiler house.

Read the case — FLIR before and after, CAD areas, energy and CO₂

Cochran boiler back plate with the economiser chamber above it and a
manhole, under Inzonex modular removable panels — Back plate and economiser chamber, panelled. The manhole stays openable.

04 / REMOTE CALCULATOR

Run the numbers for your own plant

No site visit. Tick the machines you run and correct them to yours — energy and CO₂ move as you type. Money and payback stay blank until you enter your own tariff and installed cost.

Assumptions: Energy £/MWh Installed cost £ Boiler efficiency % CO₂ t/MWh Ambient °C · hot-side hours per ASTM C680 defaultsSteam side only — gas-fired dryers are counted 1:1.

Tell us what to assess

Name the machines and we come back with a project quote and a PDF that lists kW, MWh/year and CO₂ surface by surface. Payback is worked out on your tariff and the quoted cost — not on a figure we picked.

What would you like us to look at?

Tumbler dryers Flatwork ironers Steam services Steam / condensate lines Whole site

3D heat explorers Tumbler dryer Flatwork ironer Boiler house

05 / Why Inzonex

Removable insulation solution engineered to fit, and fasten in seconds

Three details that set Inzonex modular insulation apart on laundry hot surfaces — and why it keeps performing. Product & tech specs

Easy installation

Snap-button fastening

Stainless snap buttons fasten and release each cover by hand — no tools, no fixings drilled into the dryer or ironer. Covers go on fast and unclip in seconds for routine access, damper checks or inspection, then snap back exactly.

Serviceable · reliable

Panel-matched & replaceable core

On ironers each roof panel is insulated individually so it lifts with the panel; the cover unzips so the mineral-wool core lifts out for washing or renewal. The shell stays in service — only the core is replaced.

Modular & form-fitting

Follows the equipment's shape

Modular sections wrap the exact geometry of dryer bodies and boiler fittings — minimising creases where water, lint or chemicals could pool. The clean, tailored finish also drops radiant heat into a hot, humid hall.

06 / Methodology & buyer questions

Laundry heat-loss — FAQ

How much heat does an uninsulated laundry lose?

An industrial laundry loses tens of kilowatts continuously from bare boiler doors and valves, the tops of tumbler dryers (burner and combustion-chamber surfaces) and the roofs of flatwork ironers. On the canonical model used here (ISO 12241, convection + radiation, lightly-ventilated hall) a bare dryer top at ~115 °C loses ≈1,300 W/m², an ironer roof at ~66 °C ≈590 W/m². Removable insulation cuts each by ~95%.

What temperatures are the main laundry surfaces?

Steam boiler doors and fittings run 120–190 °C; gas-fired tumbler dryers run hot — top burner/combustion chamber ~115 °C, back ~120 °C, sides ~100 °C, front ~84 °C; flatwork-ironer tops ~66 °C; feed-water and condensate lines ~90–102 °C. The surface temperature drives the loss — each is modelled at its real operating temperature.

Which equipment is worth assessing first?

Start with the hottest, longest-running exposed surfaces: dryer burner and combustion-chamber sections, large ironer roof panels, and bare steam-service components. Rank them by measured temperature, exposed area and annual operating hours rather than by an assumed payback.

How is laundry insulation payback calculated?

The calculator first estimates annual fuel energy avoided. Payback is shown only after you enter an energy rate and installed project cost. No default tariff, project cost or typical payback is assumed.

How do you insulate a flatwork ironer when the roof must lift for maintenance?

The ironer roof is usually built from lift-off panels. We insulate each panel individually, so the insulation lifts together with its panel for maintenance access and refits exactly. No access is lost and the hot roof stops radiating into the hall.

Can you insulate gas-fired tumbler dryers safely?

Yes. We cover the hot top burner and combustion-chamber surfaces, the back and the upper side panels — templated around bolts, sight-glass frames, dampers, brackets and flue stubs. Burner air intakes, controls and access points are left clear. The cover surface stays below 45 °C, reducing burn risk in tight dryer aisles.

How is Inzonex different from insulation jackets / blankets?

Inzonex is an engineered modular system — not a loose jacket. Each cover is templated to the exact geometry (boiler doors, valves, dryer bodies, ironer roof panels, irregular fittings) — the complex spots where flat blanket suppliers stop. Stainless snap-button fasteners close it by hand: no tools, no fixings drilled into the equipment. The form-fitting build follows the surface, so there are minimal folds where water, lint or chemicals could collect. The insulating core (PAROC stone wool) is independently replaceable; the outer shell is silicone (standard) or PTFE. The result looks tailored to the equipment, and unclips for cleaning and inspection.

Does insulating hot surfaces lower the laundry hall temperature?

Yes. Less radiant and convective heat enters the hall from dryer tops, ironer roofs and the boiler house, so the ambient temperature falls — a real comfort gain in a hot, humid laundry — on top of the touch-safe ≤45 °C cover surface.

Which inputs are site-specific?

Surface temperature, exposed area, quantity, annual operating hours, boiler or heat-source efficiency, fuel carbon factor, energy rate and installed cost are site-specific. The physical planning defaults are editable and commercial inputs are blank.

Want the maths? Every figure comes from the same ASTM C680 / ISO 12241 model — read the full methodology

Where a laundry
loses heat.

Walk the hot side — by area

Tumbler dryers

Flatwork ironers

Steam services

Remote calculator

The same dryer, bare and insulated