Side Water Tank Wtr And Wtl; Front Water Tank Fwt; Heater Stones, Placing The Stones; Heater Base - Helo R20 Manuel D'installation Et D'utilisation

2.2 Side water tank WTR and WTL

Empty the water tank before outside temperatures drop below zero; the tank will be damaged if water freezes in it.
Do not heat the heater while the water tank is empty. Water warms up to 60 degrees, about an hour.
Remove any plastic film from the tank cover.
Installing the water tank tap (Figure 1)
A tap, two seals and a nut are included. The tank is attached as follows:
•
Lift the water tank off.
•
Place the first seal on the threaded part of the tap.
•
Push the tap into the hole on the heater cover.
•
Place the second seal on the threaded part of the tap inside the cover.
•
Lift the water tank back into position and place the tank hole onto the threaded part of the tap.
•
Place the edge of the water tank on top of the side bracket, and push the tank against the heater cover.
•
Place the nut into the threaded part of the tap, tighten with a wrench from inside of the water tank.

2.3. Front water tank FWT

Empty the water tank before outside temperatures drop below zero; the tank will be damaged if water freezes in it.
Do not heat the heater while the water tank is empty.
Remove any plastic film from the tank cover.
Installing the water tank tap (Figure 2)
•
Choose a side to attach the tap.
•
Place the seal on the threaded part of the tap.
•
Push the tap into the hole in the water tank.
•
Tighten nut on the tap.
•
Place a seal on the plug thread.
•
Push the plug into the hole in the water tank.
•
Tighten nut on the tap.

2.4. Heater stones, placing the stones

Use peridodite or dunite stones over 10 cm in diameter. Wash the stones before placing them into the stone
compartment. Do not place the stones too tightly or pile them too high. Leave enough space between the stones.
Place the stones vertically instead of horizontally to allow hot air flow from underneath all the way to the top
stones. Fill the entire stone compartment, place flat stones vertically, pay attention to the maximum amount of
stones (Table 1)
More balanced heat properties can be reached by using a mix of differently sized and different types of stones and
adjusting the amount of stones. As stones and layouts are unique, there are no generally applicable rules. Try
placing the stones in different ways to find the ideal layout for your needs.
In order to operate properly, it is vital that the hot flue gases can flow freely in between the stones and heat them
up quickly. If the stones are too small or incorrectly laid, the air in the sauna space will heat up, but the stones
won't (Figure 3).

2.5. Heater base

Install the heater on a level, fixed and solid base, which is inflammable or insulated against fire. If the floor is of a
flammable material, a protective base for Helo sauna heaters must be used (includes 4 adjustable feet). A spark
protection sheet must be installed on the floor next to the protective base, so that it covers the floor 400 mm from
the heater and extends a minimum of 100 mm to the sides, as measured from the fire door. IT IS FORBIDDEN TO
INSTALL THE HEATER WITHOUT THE PROTECTIVE BASE ON A FLAMMABLE FLOOR.
The heater can be installed directly to a concrete floor, given that the thickness of the slab is at least 60 mm.
Make sure the poured floor under the heater does not include electrical wires or water pipes.
Installing the heater directly on a tiled floor is not recommended, because moisture seals and tile adhesives may
include substances that are non-resistant to heat. In this case, a protective base for Helo heaters must be used.

2.6. Safety distances and protection

2.6.1. Safety distances: (Figure 8)
Safety distance to a stone wall is 50 mm from the outer surface of the heater. 100 mm is preferable to allow
sufficient air flow. Therefore, a heater can be installed in a bay corresponding to the heaters width + 200 mm.
Safety distance to flammable materials is 300 mm from the outer surface of the heater. In consideration of heat
radiation and sufficient space for operating and servicing the heater, a 1,000 mm safety space should be left in
front of the heater. A minimum safety distance in the front is 500 mm.
Safety distance upwards is 1,300 mm, measured from the stone surface. A protective plate with a 30 mm air slot must be
placed on the ceiling if the measurements are not sufficient.
5