5
PLACEMENT
We recommend a concrete or cement (noncombustible) slab for placing the Optimizer Water
Furnace. The slab should be at least four (4) inches thick, sixty two (55) inches wide and sixty (70)
inches long with a well packed sub-base. The unit weighs 3030 pounds plus 1980 pounds of water.
CHIMNEY
We recommend the use of insulated stainless steel pipe as a stack to minimize creosote formation. A
six (6) inch pipe is used for the Optimizer 250. The stack should extend at least four (4) feet above
the building where the Boiler is located. Use a proper approved chimney for indoor installs.
CLEARANCES
The Outdoor (indoor) Water Furnace should be placed in a location where it can always get a
significant amount of fresh air. This is important for the water furnace to operate efficiently, and to
have good combustion.
The minimum installation clearances to combustible materials are:
Back & Sides: Forty eight(48) inches(122 cm)
Front & Sides: Forty-eight (48) inches(122 cm)
Top Eighteen (18) inches(46 cm)
Flue Pipe: Eighteen (18) inches(46 cm)
Note:
Adequate space should also be left around the outdoor water furnace in addition to the
required clearances for servicing and maintenance.
PIPE TRENCH
Pre-insulated pipes such as Urecon Dual Pex Flex, properly sized for circulation requirements,
are recommended to convey the hot water from the outdoor water furnace to each building.
The piping should be laid in a flat trench eighteen (18) inches to thirty six (36) inches deep. If
high water table is encountered, the trench may be shallower, traffic permitting. It is to your
advantage to be down deeper at the boiler/furnace especially as it makes the bend easier.
Use water tight pipe insulation is recommended as all Styrofoam will absorb water to the point
it becomes very poor insulation. Only use in high dry well drained areas if using at all.
ALL PLUMBING MUST BE DONE ACCORDING TO APPLICABLE LOCAL CODES.