
3. Installation Information
3.1 Regulations
The Installation of a Grant SpiraPod and Spira wood pellet boiler must be in accordance with the Building
Regulations and any local Byelaws, Water Regulations, British Standards and any other relevant
legislation. Refer to Section 4 of the boiler Installation & Servicing Instructions boiler for further details.
Refer to Local Building regulations for minimum distances between the SpiraPod and combustible
materials.
Check with the Local Authority regarding the possible need for Planning Permission for an external boiler.
3.2 Boiler location
The Grant SpiraPod can be installed either against the building or 'free standing' some distance away
from the building. Refer to Figures 7-4 and 7-5.
If the ‘free standing’ option is chosen, then the boiler flue system must be at least 2300mm away from
any buildings or structure that are higher than the flue outlet. See Figure 7-4. If this distance cannot be
achieved, then the SpiraPod will have to be located with the right hand side close to or against the
building and the flue system extended such that the terminal is above the eaves of the roof. Refer to
Figure 7-5.
The Grant SpiraPod must be positioned such that sufficient clearance is provided for maintenance,
servicing and filling the pellet hopper. In particular the following minimum clearances are required around
the SpiraPod:
Rear: 800mm (to remove panel and access to rear of boiler/hopper)
Front:1500mm (to open doors and install/commission/service boiler)
Pellet hopper side: 600mm (to access pellet hopper and open pellet hopper lid)
3.3 Base
The Grant SpiraPod must stand on a solid, level non-combustible surface capable of supporting both the
weight of the boiler when full of water, and the weight of the enclosure/pellet hopper when full of pellets.
Refer to Section 2 of these Installation Instructions for weights.
Grant recommends a prepared concrete standing (at least 150mm thick) with a smooth finish on the top
extending beyond the enclosure base at least 100mm all around.
3.4 Installation of SpiraPod
The Grant SpiraPod is supplied fully assembled, with the pellet hopper and pellet auger fitted, ready for
the installation of the Grant Spira boiler.
Position the SpiraPod in the required position/orientation on the concrete base and secure it to the
concrete, using suitable fixings (e.g. Rawlbolts or similar) through the two holes provided in the base at
the front of the enclosure. Refer to Figure 3-1.
Eight triangular steel shims are supplied with the boiler. These can be fitted under one or more corners,
as and when necessary, to level the SpiraPod (BEFORE securing it to the concrete base).