Technical guides for project engineers and installers.
Technology explanations, comparisons, economics. Written by engineers with 10+ years in industrial heating.
- 01/Guide
Accredited gas-equipment installer: what the law requires
In Slovenia a gas appliance in an industrial hall may only be installed by a contractor with NPK gas-installation accreditation plus a distributor licence. Without them: warranty void, insurance won't pay, the distributor locks the connection.
→ - 02/Guide
Zoned hall control: 30–50 % less gas
A 4 000 m² hall with one zone and one temperature is 1990s engineering. Three zones with modulation save 30–50 % of gas without affecting work.
→ - 03/Guide
Slovenian Eco Fund subsidies for industrial heating
Eko sklad subsidises up to 30 % of an energy-efficient heating investment for businesses and up to 50 % for municipalities. Eligibility, documentation, application steps.
→ - 04/Guide
ErP class and seasonal efficiency ηₛ in a quote
ηₛ 86 % and ErP class A++ are not marketing. Two distinct values telling you annual gas consumption and EU-compliance beyond 2026.
→ - 05/Guide
How to choose a heating system for a hall over 5 metres
Three parameters decide: ceiling height, envelope insulation, operating hours. The right technology cuts 25 to 45 % gas at the same working temperature.
→ - 06/Guide
Sizing heating power for an industrial hall: 4 steps
A formula without a gas bill is just a number. Four inputs: volume, insulation, target temperature, air exchange.
→ - 07/Guide
Spare parts for Solaronics equipment, categories and lead times
Four categories by wear and urgency. Slovenian stock covers wear items for active families. Lead time: 24-72 hours from stock, 5-15 days from factory.
→ - 08/Guide
G20, G25, G31: which gas for your unit
A gas unit not calibrated for your gas runs at 8–15 % lower efficiency. In severe cases: incomplete combustion, CO emissions, flame failure.
→ - 09/Guide
Radiant vs unit heaters: when to pick which
Radiant heats objects and people; a unit heater heats air. In halls over 5 m that gap is 25-30 % of gas. Plus three cases where the unit heater wins.
→ - 10/Guide
Heat stratification and destratifiers
Warm air has no choice: it rises. With a 9-metre ceiling the floor-to-ceiling difference can be 12 °C, meaning 25 % more expensive heating for the same workstation.
→ - 11/Guide
Radiant mounting height: placement geometry
A 30 kW radiant at 4 m does *not* cover 100 m². At 4 m it covers 56 m²; at 8 m it covers 145 m². Radiant geometry decides how many units you buy, not nominal power.
→ - 12/Guide
Condensing unit heaters: LCC payback math
A condensing unit heater costs 35–60 % more than conventional. With correct sizing the premium pays back in 2–5 years. Numbers for four scenarios.
→ - 13/Guide
Choosing air curtains for industrial doors
A sectional door 4×4 m at −5 °C outdoor and 18 °C indoor loses 18–24 kW per second open. An air curtain cuts that loss by 65–90 %.
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