Removable modular insulation wraps hot equipment without cutting, welding or permanent fasteners. It cuts heat loss by up to 96%, surfaces reach ≤45°C, and payback averages under 2 years (some 9–11 months). Here's how it compares to rigid lagging and when to use each.
Scale is everything: a small 50 m DN50 line at 150 °C saves ~20 t CO₂/year (~€7,000); a 100 m DN100 line at 250 °C saves ~155 t CO₂/year (~€46,000); a 100 m DN150 header at 300 °C saves ~280 t CO₂/year (~€84,000).
Verified estimate (ASTM C680 / ISO 12241). Conservative still-air basis; figures scale with size, temperature and operating hours. Estimate your exact case with the free calculator →
Industrial heat loss is a continuous, measurable cost that compounds across every uninsulated fitting on a plant. A bare 50 m steam line at 150 °C wastes ~100 MWh/year in fuel; a valve left uncovered for five years costs ~€9,000. The traditional answer—rigid hard lagging (fiberglass wrapped in sheet metal, or welded stainless covers)—works, but blocks maintenance. When inspections come due, crews cut or unbolt the lagging; when they're behind schedule, the fitting stays bare. Within weeks, the investment becomes dead cost.
Removable modular insulation is a different approach: snap-on covers with functional zippers and quick-release buttons. A crew can remove an insulated flange or valve in 30 seconds, perform the work, and refit it exactly. No cutting, no waste. Unlike hard lagging (often scrapped after removal), removable covers are reinstalled every time—so the insulation stays intact over the fitting's 10+ year lifecycle.
| Attribute | Removable (Inzonex) | Rigid hard lagging |
|---|---|---|
| Capital cost (€/m²) | 190–220 | 150–180 |
| Installation time | Snap-on, 10–15 min/fitting | Welded/bolted, 2–4 h/fitting |
| Refit time (inspection) | 30 seconds | Cut + re-install = 1–3 h |
| Heat loss cut | 85–95% | 85–95% |
| Surface temperature (bare 150°C equipment) | ≤45°C | ≤50°C |
| Maintenance access | Unclip & refit; stays insulated | Cut off; often left bare |
| Lifespan (if maintained) | 10+ years; re-usable | 10+ years; scrap after removal |
| Best for | High-frequency access, high-temperature fittings, payback priority | Permanent installations, low-access design |
On a mid-size boiler losing 25 kW from bare fittings at €0.07/kWh and 8000 h/yr operation, uninsulated equipment costs €180,000+ per year in lost fuel value. Even amortized over 10 years, a single valve left bare for five years represents a €9,000 loss. Removable insulation turns that equation: at a site-specific amount (estimate it with the calculator) savings per valve group and 6-month payback, even one high-temperature fitting justifies the investment. A full boiler house recovery reaches €20,000+/year.
The calculator below estimates annual heat loss and payback across 30+ equipment types. Bare steam valves, flanges, and HRSG headers are typically the fastest payback (6–12 months); tanks and vessels run 12–18 months; distribution piping varies by diameter and temperature.
Inzonex removable modular insulation consistently delivers:
Removable insulation is used on:
Boilers & steam systems: doors, safety valves, flanges, feed-water equipment, economiser headers.
Thermal equipment: heat exchangers (shell-and-tube, plate, hairpin), superheaters, HRSG insulations & headers, steam turbines, turbine exhausts, gas turbines.
Industrial plant: steam traps, manifolds, expansion joints, vessel nozzles, pump barrels, tank access covers, process ducts.
Food & beverage: pasteurizers, brew kettles, mash tuns, fermentation vessels, conveyors, steam tunnels.
Distributed plant: 50+ m of piping with high-frequency inspection points (control loops, meter runs, branch tees).
Insulation is a direct Scope 1 carbon reduction. Heat lost from bare equipment is replaced by burning more on-site fuel, so insulating it cuts Scope 1 CO₂ in tCO₂e. The calculator outputs avoided energy and tCO₂e per item and per site — directly feedable into ESOS audits, SECR reporting, CSRD (ESRS E1) transition plans, and ISO 50001 energy reviews.
It depends on temperature, surface area, and ambient. A bare 25 mm steam flange at 180 °C loses ~500 W continuously. A 50 m DN50 steam line at 150 °C wastes ~100 MWh/year. The calculator shows exact figures per equipment type and size.
Modular snap-on covers with functional zippers and quick-release buttons. No tools, no cutting. A crew member can remove it in 30 seconds for inspection, then refit it exactly.
Yes — both reach 85–95% heat loss reduction if installed identically. The difference is maintenance: rigid has to be cut off, removable unclips and refits, so removable stays insulated across the fitting's life.
Typically under 2 years; highest-temperature, longest-running equipment (steam-side valves, HRSG headers) often payback in 6–12 months. The calculator includes your fuel cost and running hours.
Yes. A bare 150 °C surface exceeds EHS personnel-protection limits (OSHA, EN ISO 13732-1, threshold ~60 °C); Inzonex removable insulation typically reaches ≤45 °C, making it safe to touch.
That's exactly what it's designed for. Unlike rigid lagging (which is cut off and often left off), removable covers unclip, refit easily, and stay insulated.
