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Welcome to Heatrae Sadia, the UK’s leading manufacturer of hot water systems and home of the brand leading Megaflo unvented systems.
Products
Heatrae Sadia is the UK's leading supplier of high quality electric water heating products.
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Megaflo HE & Megatech Solar
Megaflo HE is widely recognised as the brand leader in unvented domestic water heating offering levels of performance that are quite simply unrivalled by the competition. Whether it's a single bedsit, a luxury family home or a busy sports club shower complex, Megaflo ensures a constant supply of high power hot water; day in and day out, year after year. Brand leading domestic unvented water heating from 70 to 300 Litre.
Megaflo HE SystemFit, is designed to reduce significantly on-site installation time. These factory-assembled units are pre-plumbed and pre-wired with Danfoss central heating controls, pump, automatic by-pass valve and balancing valve.
NEW Megatech Solar
Heatrae Sadia now offers a range of domestic hot water cylinders based on Megaflo HE (unvented) which have been specifically designed for Solar applications. Designed for use with a wide range of solar systems now available in the UK, NEW Megatech Solar is an environmentally friendly and efficient way of providing domestic hot water.
 Megaflo HE Direct & Indirect Megaflo HE - UK’s No1 unvented water heater just got a whole lot hotter!
Megaflo HE SystemFit A new time saving Megaflo HE system package.
Megaflow HE Unvented
Megaflo is the brand leader in unvented domestic water heating.
In addition to the basic advantages of unvented systems, NEW high efficiency Megaflo HE offers a number of features that place it well ahead of the competition in terms of performance, quality and reliability.
The NEW high efficiency Megaflo HE now boasts numerous innovative features designed to ensure superior levels of operating efficiency, delivering even more hot water – just when you need it!
Thanks to the high-performance ‘coil in coil’ heat exchanger; more hot water is available quicker than ever before.
Heatrae Sadia's Specification Advice Team is on hand to discuss requirements for specific projects, applications and product selection.
Features
Internal air-gap with patented floating baffle
Strong, Duplex stainless steel construction
High performannce 'coil-in-coil' heat exchanger
No sacrificial anode (eliminates need for annual inspection)
Appliance-like plastic-coated outer case
Patented cold water inlet diffuser minimises mixing of cold and hot water
Water inlet controls increase flow rates by up to 35%
Improved performance even at 1 bar
Every unit tested to 15 bar (217psi)
25-year transferable cylinder guarantee
5-year guarantee on the coldwater control valve
2-year gurantee on all other components
½" temperature and pressure relief valve
System Benefits
For Specifiers/Developers
- Free fully indemnified design service - conditions apply
- Exceeds CHeSS Best Practice for heat recovery and insulation
- CFC free insulation for maximum heat retention
- Flexibility in cylinder siting*
- Dry roof space increases design options**
- No reduction in operating pressure of flow rates
- Supplied with safety and hot water controls
- Patented internal expansion system
- Meets BBA Internal Expansion Endurance Test
- 25-year transferable cylinder guarantee
- 5-year guarantee on the coldwater control valve
- Dry roof space increases design options
- No costly shower pumps to install
- All units are fully factory tested to ensure reliability
For Installers
- No cold feed cistern to install for the hot water supply
- CFC free insulation for maximum heat retention
- No shower pump to install
- All units fully factory tested to ensure reliability
- No anode to check or replace
- Light and compact construction
- Patented internal expansion system
- No external expansion vessel
- Complete with mains water isolating valve
- Supplied with safety and hot water controls
- 25-year transferable cylinder guarantee
- 5-year guarantee on the coldwater control valve
- No costly shower pumps to install
- All units are fully factory tested to ensure reliability
- Cost effective installer friendly connections
- Neater and quicker installation
- Lightweight, installer friendly design
- Stronger construction for durability and high pressure performance
- Easy to commission
- All controls included
For End Users
Selection Advice
Choosing the right unit to use
| Type of property |
Indirect |
Direct |
| Bedsit |
CL70HE |
D70HE |
| 1 Bed 1 Bath+Shower |
CL125HE |
DD125HE/DD145HE |
| 2 Bed 1 Bath+Shower |
CL125HE |
DD145HE/DD170HE |
| 3 Bed 1 Bath+Shower |
CL145HE |
DD210HE |
| 4 Bed 1 Bath+Shower |
CL170HE |
DD210HE |
| 4/5 Bed 2 Bath+Showe |
CL210HE |
DD250HE |
| 4/5 Bed 3 Bath+Sho |
CL250HE |
DD300HE |
| Light commercial usage |
CL250HE |
DDD250HE/DDD300HE |
| Other Commercial uses |
CL300HE |
DDD250HE/DDD300HE |
Key:
D = One element
DD = Two elements
DDD = Three elements*
CL = Indirect with one element supplied
CL210HE, CL250HE and CL300HE have upper element boss blanked off. Additional upper immersion heater and thermostat is available as an accessory 95 970 510.
*DDD cylinders are supplied with three elements and a blanking plug which can be fitted as required to four bosses, one at the boost position and three near the base of the unit. This gives a choice of heating options dependent on application.
Dimension Table
Installation Instructions
PDF's
Please be aware you have to have adobe acrobat reader installed on your computer to view the PDF'S. Please click on the red square below to download.
Specification
Product Number(s):
D70HE 95:050:360
CL70HE 95:050:361
DD125HE 95:050:362
CL125HE 95:050:363
DD145HE 95:050:364
CL145HE 95:050:365
DD170HE 95:050:366
CL170HE 95:050:367
DD210HE 95:050:368
DDD210HE 95:050:380
CL210HE 95:050:369
DD250HE 95:050:370
DDD250HE 95:050:371
CL250HE 95:050:372
DD300HE 95:050:373
DDD300HE 95:050:374
CL300HE 95:050:375
Accessory: Megaflo HE immersion heater with thermostat - upper ‘straight’ 95:970:510
Accessory: Swept tee (22x15x22) 95:970:509
Anode:
Not required.
Approvals:
BBA, BEAB, CE and WRAS approved.
Manufactured in the UK in a BS EN ISO 9002 registered factory.
Factory Safety:
Direct models: Manually re-settable cut-out on heating element operates at 85°C.
Indirect models: High limit thermostat, factory - set to 85°C.
All models: Temperature and pressure relief valve, factory set to operate at 10 bar and 90°C.
Outer Casing:
White textured plastic coated corrosion proofed steel.
Primary Coil:
22mm diameter, stainless steel.
Rating:
Immersion heater/s:3-9kW @ 240V dependent on model.
Safety Features:
240V, two-port high limit motorised valve supplied.
Thermal Insulation:
CFC/HCFC free (ODP Zero) fire-retardant expanded polyurethane (40-50mm thick). GWP 3.1 (Global Warming Potential)
Standing Heat Loss Figures (kWh/24h)
70ltr 1.10
125ltr 1.49
145ltr 1.65
170ltr 1.77
210ltr 1.97
250ltr 2.09
300ltr 2.25
Thermostat Spec:
Direct models: Element thermostat adjustable from 10°C to 70°C.
Indirect models: Factory-fitted cylinder thermostat adjustable to 70°C.
Water Container:
Duplex 2304 (Grade 1.4362 EN 10088) stainless steel with internal air-gap system. Pressure tested to 15 bar and batch tested to 30 bar.
Installation Details
Connections:
Must be installed by a competent installer in accordance with Local Regulations.
England and Wales - Building Regulations G3,
Scotland - Technical Standards P3,
N. Ireland - Building Regulations P5.
Cold Water Control:
22mm HiFlo cold water combination valve assembly comprising 3 bar pressure reducer, ¼ turn isolating ball valve, line strainer, non-return valve and 8 bar expansion valve.
Cold water control valve (3 bar) is supplied for use with mains pressure of 20 bar to 1.5 bar, at the lower pressure, performance will be reduced accordingly. Normal working pressure is 3 bar.
Compatible Boilers:
Gas or oil fired – sealed system or open vent type, fitted with integral control thermostat.
Electrical:
Connection is direct to terminals in the immersion heater which must be permanently connected to the supply through a double-pole linked isolating switch with a minimum breaking capacity of 13A.
On indirect models, controls should be wired to the boiler, programmer etc. in accordance with the control scheme being used. All electrical installation must conform to the latest IEE Wiring Regulations.
Fixing:
Floor standing only.
Flow Rates:
Up to 72 litres per minute depending on adequate supply conditions.
Minimum Water Supply Reqmnts:
20 litres per minute flow and 1.5 bar pressure. (At lesser values, the unit will operate but outlet flow rates may be unacceptable, especially with multiple draw-offs.)
Please contact our Specification Advice Team to discuss specific site conditions if the above minimum requirement cannot be met. Tel: 01603 420220.
Plumbing:
Inlet/outlet: Use 22mm compression fittings or ¾" bsp male.
Indirect coil: Use 22mm compression fittings or ¾" bsp male.
½” T&P relief valve 15mm compression outlet.
Pressure Testing:
To 15 bar and batch testing to 30 bar.
Secondary Circulation:
Via 22 x 22 x 15mm swept tee (not supplied, available as accessory 95:970:509) Fitted to inlet pipework (circulating pump not supplied).
Tundish:
15mm inlet and 22mm compression outlet.
WaterExpansion:
Via air gap built into the top of the cylinder. The patented floating baffle helps maintain the air gap.
Megaflow Unvented HE Systemfit
Designed to reduce significantly on-site installation time. These factory assembled units are pre-plumbed and pre-wired with Danfoss central heating controls, pump, automatic by-pass valve and balancing valve.
This time saving Megaflo HE package not only speeds installation but significantly enhances the quality and integrity of the central heating system thus eliminating on-site defects and costly call backs.
Features
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Megaflo HE - the UK’s No. 1 unvented cylinder
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125 & 145 litre capacities with 22mm primary connections
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170, 210, 250 & 300 litre capacities with 28mm primary connections.
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Danfoss TP9 Controls (S Plan configuration only)
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No maintenance three speed circulating pump
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Automatic by-pass valve for system efficiency
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Load balancing valve for indirect coil efficiency
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Connections for vented and unvented heating primaries
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Patented cold water inlet diffuser minimises mixing of cold and hot water
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25-year transferable cylinder guarantee - conditions apply.
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5-year guarantee on the coldwater control valve
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2-year guarantee on all other components
Dimension Table
Specifications
Product Number(s):
CL125S - 95:050:382
CL145S - 95:050:384
CL170S28 - 95:050:393
CL210S28 - 95:050:394
CL250S28 - 95:050:395
CL300S28 - 95:050:396
Anode:
Not required
Approvals:
BBA, BEAB, CE and WRAS approved.
Manufactured in the UK in a BS EN ISO 9001:2000 registered factory.
Controls:
Pre-wired with Danfoss TP9 programmer
Factory Safety:
High limit thermostat, factory - set to 85°C.
Temperature and pressure relief valve, factory set to operate at 10 bar and 90°C.
240V, two-port high limit motorised valve.
Outer Casing:
White textured plastic coated corrosion proofed steel.
Primary Coil:
22mm diameter, stainless steel, coil in coil with 22mm connections - CL125 & CL145 models.
22mm diameter, stainless steel, coil in coil with 28mm connections - CL170, CL210, CL250 & CL300 models.
Pump:
Pre-wired 240V, 3 speed circulator pump with quality isolating valves.
Rating:
Immersion heater 3kW @ 240V
Thermal Insulation:
CFC/HCFC free (ODP Zero) flame-retardant expanded polyurethane (50mm thick). GWP 3.1 (Global Warming Potential).
Thermostat Spec:
Factory-fitted cylinder thermostat adjustable to 70°C.
Water Container:
Duplex 2304 (Grade 1.4362 EN 10088) stainless steel with internal air-gap system. Pressure tested to 15 bar and batch tested to 30
Installation Details
Connections:
Must be installed by a competent installer in accordance with Local Regulations.
England and Wales - Building Regulations G3,
Scotland - Technical Standards P3,
N. Ireland - Building Regulations P5.
Cold Water Control:
22mm HiFlo cold water combination valve comprising 3 bar pressure reducer, line strainer, non-return valve and cold water balancing port.
Cold water control valve (3 bar) is supplied for use with mains pressure of 20 bar to 1.5 bar, at the lower pressure, performance will be reduced accordingly. Normal working pressure is 3 bar.
Compatible Boilers:
Gas or oil fired – sealed system or open vent type, fitted with integral control thermostat. Please check with your system designer and boiler manufacturer for application compatibility as Systemfit is a packaged unit for a central heating system.
Electrical:
Connection is direct to terminals in the immersion heater which must be permanently connected to the supply through a double-pole linked isolating switch with a minimum breaking capacity of 13A.
On indirect models, controls should be wired to the boiler, programmer etc. in accordance with the control scheme being used. All electrical installation must conform to the latest IEE Wiring Regulations.
Fixing:
Floor standing only.
Flow Rates:
Up to 72 litres per minute depending on adequate supply conditions.
Minimum Water Supply Reqmnts:
20 litres per minute flow and 1.5 bar pressure. (At lesser values, the unit will operate but outlet flow rates may be unacceptable, especially with multiple draw-offs.)
Please contact our Specification Advice Team to discuss specific site conditions if the above minimum requirement cannot be met. Tel: 01603 420220
Plumbing:
Inlet/outlet: Use 22mm compression fittings.
Indirect coil: Use 22mm compression fittings for CL125 & CL145 models and 28mm compression fittings for CL170, CL210, CL250 & CL300 models..
½” T&P relief valve 15mm compression outlet.
Pressure Testing:
To 15 bar and batch testing to 30 bar.
Tundish:
15mm inlet and 22mm compression outlet.
WaterExpansion:
Via air gap built into the top of the cylinder. The patented floating baffle helps maintain the air gap.
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