
The ideal pellet store
Requirements
The ideal pellet store is dry, offers sufficient room for a year's supply of pellets and is located on an exterior wall. A fire protection door ensures maximum safety.
The lorries that deliver a year's supply of pellets can blow them into the storage room from a distance of up to 30 metres. Ideally, a pellet store will be on an exterior wall. It does not need to be right next to the boiler room. Thanks to Windhager's innovative, dust-free suction system, hallways and rooms can be bridged with no problem.
Eight-probe suction solution
- More storage space (1/3 and more)
- Saves time and money
- Safe and maintenance free
Pellet rules of thumb
Storage room | Energy content |
---|---|
650 kg pellets = 1 m³ storage volume | 1 kg pellets = 4.9 kWh |
2 kg pellets = 1 l of EL heating oil = 1 m³ natural gas | |
Store room dimensions with inclined supports in room = building heat load in kW x 0.9 = annual storage room requirement in m³ | 3 m³ pellets = 1,000 l of EL heating oil = 1,000 m³ natural gas |
Patented pellet suction system
1 probe | 3 probes | 8 probes | |
---|---|---|---|
Configuration recommendation | Square storage room with masonry walls, up to 4 m² | Rectangular storage room with masonry walls, up to 6 m² | Storage room with masonry walls, min. 4 m² 2 separate stores (zones), special shapes for storage rooms: e.g. L-shaped |
Inclined floor | Often a good idea | Usually a good idea | Usually not necessary |
Safety function | Automatic, agitation | Automatic, "Rinsing and changing over" | Automatic, "Rinsing and changing over" |
Suction power ensured | up to 25 m | up to 25 m | up to 25 m |
Store dimensions | Heat load in kW x 0.9 = storage room volume in m³ | Heat load in kW x 0.9 = storage room volume in m³ | Heat load in kW x 0.75 = storage room volume in m³ |
Modular kit system
The modular and economical steel sheet inclined floor only consists of three basic elements::
- Vertical support 0.5 m
- Cover plate 0.5 m
- Cover plate for extension to 1 m sloping surfaces
Optional: Front cover plates 0.5 m and 1 m
Advantages
- Easy installation - just arrange and screw into place!
- Custom-fit solution for all storage room sizes
- Simple, self-explanatory construction with only three basic elements
- Galvanised sheet steel ensures easy sliding of pellets and a long service life
- Tested stability up to a room height of 3 meters
- Standard cut-out for suction pipe feed-through

Sheet steel hopper
Alternative solution for damp spaces
A sheet steel hopper is suited for pellet storage in damp spaces and can be installed directly in the boiler room as it is made entirely of galvanised sheet steel sections.
Advantages
- Flexible adaptation to circumstances1) (22 types and up to approx. 10 tonnes in volume)
- Can also be installed directly in the boiler room (legal specifications and distances must be maintained)
- High stability and mechanical strength
- Ideal for damp installation rooms
Sheet steel hopper dimensions
Fabric hopper
Alternative solution for damp spaces
A fabric hopper is another solution for damp installation rooms. The height-adjustable frame construction and conical base are also made of galvanised sheet steel. The outer shell is made of anti-static plastic fabric.
Advantages
- Flexible height adjustment from 1.8 to 2.5 metres
- Available in 7 sizes (up to 9 tonnes in volume)
- Can be installed directly in the boiler room (must maintain legal specifications and distances)
- Long service life thanks to galvanised frame construction and durable, anti-static plastic fabric
- Ideal for damp installation rooms
- Super quick installation involving just a few screw connections
Buried and outdoor hoppers
For outdoor storage
If there is no space available in the house or basement, the pellets can also be stored in a plastic tank buried in the garden.
Available sizes
Buried hoppers are available in several sizes and can be obtained from partner companies.
Advantages
- Storage solution for use outside buildings
- Dry, secure pellet storage regardless of weather
- Buried hoppers with up to 6 tonnes capacity delete (on request)
- External hopper with up to 7 tonne capacity

Storage Room App - Quick and easy
Storage Room App Advantages
- Available free of charge in the app stores
- Applicable for all Apple and Android systems
- Produces appropriate storage room solutions with few inputs
- Scaled 2-D views
- 3-D examples for each storage room solution
- Most important conversion formulas at a glance
- Integrated PDF generator
- Quick access to Windhager's storage room brochure and planning document
- App does not require internet connection and can be used in the basement
- Personalisation possible