Heater Accessories

Heater accessories — what ducting, panels and spare parts are for

A forced-air heater (a portable heating unit that pushes hot air with a fan) warms a hall more effectively the better the airflow is spread and the healthier the burner runs. That is the job of the accessories: a flexible duct (an elastic sleeve that channels heat to a chosen spot), an air outlet panel (a splitter that divides the airflow into several outlets), an adapter (a flange joining the outlet spigot to the duct) and the burner consumables: the nozzle, photocell and ignition electrode. Without them the hot air escapes as a single blast right in front of the unit.

At NORWIT.PL you will find above all the original accessories for Master heaters, along with parts from the Heylo and Rex Nordic lines. An accessory is matched to the model number and spigot diameter, never by eye — the panel for a BV 400 has a Ø 400 mm outlet, while the one for BV 110 and BV 170 has two Ø 300 mm outlets, so they are not interchangeable. Below we sort out the accessory types, panel selection and the difference between the B and BV series.

Types of heater accessories

We split the range into two groups: hot-air distribution (ducts, panels, adapters) and consumables and controls (nozzles, photocells, electrodes, thermostats, flue). The first decides where the heat goes, the second whether the heater starts reliably. The table pairs each accessory type with its function and fit to the Master series.

Heat-distribution accessories suit mainly higher-output oil- and gas-fired heaters; burner parts apply above all to oil-fired heaters.

Air outlet panels and adapters — choosing by model and diameter

An air outlet panel mounts on the heater outlet to split one hot airflow into several ducts routed to different parts of the hall. The panel's number of outlets and the diameter of each outlet must match the model — otherwise the panel will not seat on the housing or the duct will not slide onto the spigot. A 1-way panel drives the full output to one spot; a 2-way panel divides it between two directions.

A flexible-duct adapter is the flange that matches the heater spigot to the duct: in the Master range the Ø 340 mm version serves BV 110 and BV 170, while the Ø 400 mm version serves BV 290. The numbers BV 110, BV 170, BV 290, BV 400 as well as B 18 and B 30 on the rating plate point unambiguously to the right panel and adapter.

Direct-fired (B) and indirect-fired (BV) heaters — different accessories, different flue

A Master heater model starts with a letter that decides which accessories fit. The B series is a direct-fired heater — combustion gases leave with the warm air into the room, so the unit has no flue and needs a constant supply of fresh air. The BV series is an indirect-fired heater with a heat exchanger: the exhaust is separated from the working airflow and vented outside through a flue, so it can heat enclosed rooms with people inside.

In indirect BV heaters the flue (exhaust duct) is mandatory — without it the heat exchanger will not work as intended. Direct-fired B units use no flue. When choosing accessories, first establish whether the unit is a B or a BV, then move down to the outlet diameters and panel configuration.

Burner consumables — nozzle, photocell, igniter and thermostat

In an oil-fired heater a set of wearing parts is responsible for a clean start-up and a steady flame. The oil nozzle atomises the fuel into a mist of a defined angle and flow rate — an orifice clogged with deposits causes sooting and a drop in output. The photocell (flame sensor) checks whether the burner has lit; when dirty it blocks the start-up. The ignition electrode (igniter) produces the spark that lights the oil — a burnt one gives uneven ignition.

Automation is handled by the room thermostat — it switches the heater on when the temperature drops below the set point and off once it is reached, holding, for example, 12 °C in a warehouse or 18 °C in a workshop while cutting oil consumption. We keep the consumables and control accessories for oil heaters and the other units in the heating and cooling section matched by model number.

Frequently asked questions about heater accessories

Why buy heater accessories at NORWIT.PL

We rely on original parts matched by model number: 1- and 2-way air outlet panels, Ø 340 and Ø 400 mm adapters, flexible ducts and the burner consumable set — nozzle, photocell and ignition electrode. We stock primarily accessories for Master heaters, complemented by the Heylo and Rex Nordic lines, so for the BV 110, BV 170, BV 290, BV 400 series as well as the B 18 and B 30 you will find a part that matches on diameter and configuration. The units themselves are in the heating and cooling section — from oil heaters to forced-air heaters. We ship orders placed online across the country.