Ascent Oil – August 2019 10
12"
40"
4
3
4
"
44
1
2
"
20"
52"
47
3
4
"
30"
"A"
"B"
Installations should utilize the Energy Kinetics boiler stand or a suitable solid, stable, level, and smooth foundation for the
boiler. If not using an Energy Kinetics supplied stand, provide a solid, level, and smooth foundation with clearance for door
opening and service. Place the unit as near to the chimney or vent as possible allowing clearance for front cleaning and
service as shown in Figure 1A and 1B. Installing the boiler with the burner parallel to a wall is sometimes advisable to allow
access to front and rear components in spaces with limited depth.
NOTICE: The Ascent Combi is manufactured with the BACK of the boiler higher than the front to assist in air removal. A
spirit level placed front to back on the lower side of the base near the floor will read level. The stand design compensates
and properly pitches the boiler ¼ to ½ a bubble off level, with the back of the boiler higher. Adjust the levelling feet or by
shimming the base at the floor as necessary.
Figure 1B - Boiler Clearance for Cleaning and Service
Open Door
Leg Bottom to Floor
Clearance “B” (minimum)
COMBUSTION AIR
The Ascent Combi Boiler must be installed in an area where adequate fresh air is available to support combustion. An
optional sealed air box (Silent Burner Cover, included in the Combi Plus model) allows combustion air to be piped from
outside the building. Piping of outside air directly to the boiler is highly recommended because it completely isolates the
boiler from the home environment, it greatly reduces operating noise from the boiler, and it can lower idle loss in some
cases.
Boiler with outside air piping: In modern houses with tight construction, the connection of the Silent Burner Cover to
an outside air source to provide combustion air is highly recommended on the Ascent Combi. It is required on the Ascent
Plus Combi for sidewall vent installations. The outside air source should be located high enough above grade to be at least
12” above expected snow accumulation.
WARNING: Combustion air must be supplied for the Ascent Plus Combi for sidewall vent installations, although it is
optional for the Ascent Combi. It may be supplied with up to 50 feet in equivalent length through
polypropylene or PVC pipe. For the EK1T Ascent Combi use 2" pipe, and for the EK1T+ Ascent Plus Combi
use 3” pipe. Each 90 degree elbow is the equivalent of 5 feet of straight pipe. For example, if three 90
degree elbows are used, then the length of pipe run may be up to 35 feet. For longer runs up to 65
equivalent feet increase pipe size by 1"(to 3” for the Ascent Combi and to 4” for the Ascent Plus Combi). A
Tek-screwed or un-cemented joint allows the air inlet pipe to be disconnected so the swing down door may
open.
Level bottom of stand,
or slightly higher in back
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