Specifications
Table Of Contents
- Contents
 - About Your Water Heater
- Water Heater Application
 - Model Type
 - Water Heater Operation
 - Gas Boosting For A Solar Water Heater
 - Mains Pressure
 - How Hot Should The Water Be?
 - Hotter Water Increases The Risk Of Scald Injury
 - Warning
 - Safety
 - Precautions
 - General Maintenance
 - Minor Six Month Maintenance
 - Annual Service
 - To Turn Off The Water Heater
 - To Turn On The Water Heater
 - Going On Holidays
 - Frost Protection
 - Draining The Water Heater
 - How Do I Know If The Water Heater Is Installed Correctly?
 - Victorian Customers
 - Does The Water Chemistry Affect The Water Heater?
 - How Long Will The Water Heater Last?
 
 - Water Supplies
 - Save A Service Call
- No Display On The Controller (If Fitted)
 - Cold Water From The Hot Tap
 - Water Is Too Hot Or Not Hot Enough
 - No Water From The Hot Tap
 - Water Flow Fluctuates
 - Gas Booster Operating Too Frequently
 - Fan Continues To Run After Water Heater Operation Stops
 - Smell Of Flue Gases
 - Clouds Of White ‘Vapour’ From The Flue Terminal
 - Pressure Relief Valve Discharging
 - Error Code
 - Higher Than Expected Gas Bills
 
 - Installation – Water Heater
- Installation Standards
 - Water Heater Application
 - Water Heater Location
 - Ventilation
 - Secondary Flue
 - Safe Tray
 - Pipe Cover
 - Frost Protection
 - Mains Water Supply
 - Preset Outlet Temperature Setting
 - Hot Water Delivery
 - Circulated Hot Water Flow And Return System
 - Reducing Heat Losses
 - Dimensions And Technical Data
 - Typical Installation – Indoor Location
 
 - Connections – Plumbing
 - Flueing
 - Connections – Electrical
 - Multiple Installations
 - Commissioning
 - Draining The Water Heater
 - Rheem Continuous Flow Gas Water Heater Warranty – Australia Only
 - 1. The Rheem Warranty – General
 - 2. Terms Of The Rheem Warranty And Exclusions To It
 - 3. What Is Covered By The Rheem Warranty For The Water Heaters Detailed In This Document
 - 4. Entitlement To Make A Claim Under This Warranty
 - 5. How To Make A Claim Under This Warranty
 - 6. The Australian Consumer Law
 

FLUEING 
33 
HORIZONTAL FLUE INSTALLATION 
Horizontal Flueing – Directly Behind Water Heater 
This method of flue installation is used where the secondary flue is to penetrate and terminate immediately 
behind the wall on which the water heater is mounted. 
Do not plumb the water heater prior to this type of flue installation, as the water heater (if mounted) requires 
to be removed from the wall prior to the final installation of the flue. 
Notes: 
  Ensure each flue component is fully engaged and the rubber seal on the inner duct is well seated at 
each joint. 
  Each flue component is supplied with screws to connect to the adjacent flue component. The screws are 
located in a bag taped to the outside of the flue component. 
To install a horizontal flue and termination directly behind the water heater: 
1.  Carefully remove the template inserted as the middle pages of this installation instructions booklet. 
2.  Align the mounting bracket holes on the template exactly over 
the upper wall mounting bracket holes on the water heater. 
This step presumes the water heater is hung on the wall. 
  It may be convenient to tape the template to the wall. 
Note:  Ensure  there  are  no  studs,  noggins,  pipes  or  electrical 
cables located in the wall where the flue is to penetrate 
3.  Mark the pilot hole location through the centre of the template. 
  Remove but DO NOT DISCARD the template. 
4.  Remove the water heater from the wall. 
Note: It is necessary to remove the water heater from the wall 
to  allow  the  fitting  and  installation  of  the  flue.  It  is  also  good 
practice so no debris from the drilling operation enters the water 
heater flue outlet. 
5.  Drill a pilot hole using a 6.5 mm diameter or smaller drill bit. 
The drill bit must be long enough to penetrate completely through the outer skin of the external wall. 
Note: Ensure the drill remains level and straight during this step. 
6.  Cut along the middle of the bold circle marked “Cut Line” on the template. 
7.  Align the centre of the template with the pilot hole on the wall surface and scribe around the template 
onto the wall. 
The circle should be 150 mm in diameter. 
  Remove but DO NOT DISCARD the template. 
8.  Align the centre of the template with the pilot hole  on the outside wall surface and scribe around the 
template onto the wall. 
The circle should be 150 mm in diameter. 
  Remove the template. 
9.  Drill or cut the flue termination hole through the wall using a cutting tool suitable for the wall construction. 
Note: The Trim Ring (PN 295125) will cover a 150 mm diameter hole. 
position template 










