Gas · Continuous Flow Hot Water Systems
Not designed for commercial use
12 Year Heat Exchanger
3 Years Parts and
Labour
1 Year Heat Exchanger
1 Year Parts and
Labour
Save space with small footprint mounted on your
wall
They heat water as you need it, so you will never
run out of hot water
Controllers can be installed to accurately deliver
required water temperature
You may need to upgrade your gas line which can
add to your upfront costs
Small amount of water (approx 1 to 2 litres) is
wasted in initial delivery
No mains pressure
Takes longer to deliver hot water than a storage
heater
Save space with small footprint mounted on your
wall
They heat water as you need it, so you will never run
out of hot water
Controllers can be installed to accurately deliver
required water temperature
You may need to upgrade your gas line which can add to
your upfront costs
Small amount of water (approx 1 to 2 litres) is wasted
in initial delivery
No mains pressure
Takes longer to deliver hot water than a storage
heater
Always use a licensed plumber when installing a hot water system.
Gas · Continuous Flow Hot Water Systems
The Thermann C7 high efficiency Gas Continuous Flow unit ensures you will have enough hot water, when you need it. This unit has been developed to reduce wasted energy by pre-heating the water using heat from the gas exhaust, meaning you'll use less energy. With a 12 year warranty, you can rest assured you are covered for the life of the unit, and optional universal controllers ensure you always have precise control of your hot water temperature settings. The unit is available as a 26L model in both NG and LPG to suit your gas type.
1. A hot water tap is turned on
2. Water enters the heater
3. The water flow sensor detects the water
flow
4. The computer automatically ignites the
burner
5. Water circulates through the heat
exchanger
6. The warmed water passes through a second heat
exchanger to the designated temperature
7. When the tap is turned off, the unit shuts
down
| Features | 26 L |
|---|---|
| No. Bathrooms | 2 – 3 |
| Energy Rating 50°C (stars) | 7.3 |
| Energy Rating 60°C (stars) | 7.0 |
| Capacity at 25°C rise (L/min) | 26 |
| Capacity at 40°C rise (L/min) | 16.25 |
| Gas Type Available | NG, LPG |
| Measurements | 26 L |
|---|---|
| Nominal hourly gas consumption (MJ/h) | 173 |
| Test point pressure NG (kPa) | 0.84 |
| Test point pressure LPG (kPa) | 1.27 |
| Minimum water pressure (kPa) | 115 |
| Maximum water pressure (kPa) | 1200 |
| Minimum gas inlet pressure NG (kPa) | 1.13 |
| Minimum gas inlet pressure LPG (kPa) | 2.75 |
| Maximum gas inlet pressure NG (kPa) | 5.0 |
| Maximum gas inlet pressure LPG (kPa) | 7.0 |
| Minimum flow rate ignition (L/min) | 2.7 |
| Input voltage single phase 50HZ (v) | 240 |
| Maximum output current (A) | 0.46 |
| - incl anti-frost heater | 0.66 |
| Inlet gas connection male thread | R3/4” (20mm) |
| Cold water connection male thread | R3/4” (20mm) |
| Hot water connection male thread | R3/4” (20mm) |
| Condensate connection male thread | R1/2" (15mm) |
| Relief valve pressure setting (kPa) | 1400 |
| Weight dry (kg) | 20.5 |
| Dimensions (DxWxH mm) | 205x366x573 |
| Product code | Number Of People | Delivery Capacity (At 25 Deg C Rise) | Gas Type | Temperature Setting | Gas Consumption |
|---|---|---|---|---|---|
| 9506816 | 4-6 | 26 L/min | Natural | 60 deg C | 173 MJ/h |
| 9506815 | 4-6 | 26 L/min | Natural | 50 deg C | 173 MJ/h |
| 9506818 | 4-6 | 26 L/min | LPG | 60 deg C | 173 MJ/h |
| 9506817 | 4-6 | 26 L/min | LPG | 50 deg C | 173 MJ/h |
