Comfort Maker CMHT03 Installation Instructions Download Page 1

Please read instructions before commencing installation

Comfort Maker : Three Room Heat Transfer Kit 

Installation Instructions

Model:CMHT03.    Order Code: FAN0846

COMFORT MAKER

Auckland/Christchurch New Zealand   Fax: (09) 259 1661

PUB0195 iss:04 04/17

Hints:
•  Before making any holes in ceilings check for access behind the ceiling, taking care 

to avoid ceiling joists, etc.

•  Check the distance you want to run the duct.  The shorter the duct runs the more 

efficient the fan is.

•  Remember! The hot layer of air is dispersed across the whole ceiling so it is not 

necessary to install the inlet grille directly near the fire flue.  The grille should be at 

least 1 metre from the flue in order to avoid excessively high temperatures.

•   Although the fan is ball bearing mounted and very quiet it is recommended to 

mount it on a solid surface such as the top plate of a wall partition or, better still, 

suspend the unit from the rafters. This will ensure the quietest operation and 

eliminate any resonance.  

Installation Instructions:

1.  Choose the inlet location within the already heated room and cut a 155mm Dia. 

hole. CARE MUST BE TAKEN TO CUT AN ACCURATE AND NEAT HOLE. Mount 

the eggcrate inlet grille using the screws supplied.

2.  Choose the outlet location in the room to be heated. Cut a 150mm Dia. hole for the 

diffuser.  Remove the clip-in centre portion of the circular diffuser and the clamp 

ring.  The diffuser is inserted into the cavity and fixed using the screws provided. 

The clamp ring is not normally required.  However should you have difficulty with 

screwing into the Gib, use the clamp ring over the spigot. Screwing

 

through the Gib 

into the clamp ring will produce a secure fixing for the diffuser.

3.  Fitting of ducting: Straight runs without tight bends are most efficient.  The inner 

duct should be stretched reasonably tight to assist efficient airflow.  Where joins in 

ducting on longer runs are necessary we advise the use of a proper duct connector 

sleeve (Order code: DCT0059) to form the joint on.  Stretch insulation over 

maximum amount of each joint to avoid heat-loss.

4.  Locate the best mounting place for the fan unit in the ceiling space.  Ensure the 

correct airflow direction is maintained when mounting the fan.  Make the wiring 

connections. For heat transfer it is recommended that the high speed connection 

is used for the Mixflo fan, see Mixflo installation instructions. It is recommended 

all wiring be performed by or in conjunction with a registered electrical contractor.   

Note that a suitable junction box will be required to connect the fan and incoming 

supply.

COMFORTMAKER ACCESSORIES 

 

Thermostat Accessories: 

•  FAN5555 - UT - T1 Ultecon Automated Touch Screen Thermostat 
•  FAN5856 - UT - M1 Ultecon Mechanical Thermostat

Duct/Diffuser Accessories:

• 

DCT0088 - 150mm x 3 metres Insulated Ducting

•  DCT0059 - 150mm Duct Connector
•  DCT0058 - 150mm Adjustable Diffuser
•  DCT0091 - 150:150:150 Branch Take Off
•  DCT0173 - Duct Tape

 

 

Note:

 A maximum extended length of 15 metres is recommended with this system

FAN5555

FAN5856

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