Heatrae Sadia Megaflo Eco SystemReady Indirect Unvented Hot Water Cylinder – 170SB / 210SB / 250SB / 300SB
Heatrae Sadia Megaflo Eco SystemReady Indirect Unvented Hot Water Cylinder – 170SB / 210SB / 250SB / 300SB
The Heatrae Sadia Megaflo Eco SystemReady is the fastest-installing variant of the market-leading Megaflo Eco unvented cylinder range — factory pre-plumbed and pre-wired for direct connection to a system boiler. Available in 170, 210, 250, and 300 litres, every SystemReady cylinder arrives on site with the heating controls, motorised valve, and wiring centre already mounted and connected to the cylinder body — significantly reducing labour time and delivering a consistently neater, more professional installation appearance. Built from high-grade duplex stainless steel with a lifetime inner-tank guarantee, the SystemReady delivers mains-pressure hot water at up to 76 litres per minute with no need for loft tanks, shower pumps, or an external DHW expansion vessel.
Megaflo Eco SystemReady cylinders must be installed and commissioned by a G3 competent person (or equivalent under Scottish / Northern Irish Building Regulations). All electrical connections must be made by a qualified electrician to current IET Wiring Regulations. All installations must be notified to Local Area Building Control. The Benchmark commissioning checklist must be completed and left with the householder.
The Megaflo Eco SystemReady is specifically engineered for use with a system boiler, which has its own integral pump, expansion vessel, and controls. It is not designed for heat-only (regular) boilers — if you are using a heat-only boiler, please see the Megaflo Eco SystemFit range. A tapping for a second heating zone is included as standard for multi-zone system installations.
The Megaflo Eco SystemReady has no internal DHW expansion vessel — domestic hot water expansion is handled by the integral floating-baffle system. However, the primary heating circuit expansion vessel supplied with the unit must be correctly installed in the primary circuit. The safety valves fitted protect the water heater only and do not protect the primary system.
The SystemReady's defining feature is its factory-assembled control pack — the cylinder thermostat, thermal cut-out, 22 mm 2-port motorised valve, and wiring centre are already mounted and wired to the cylinder body before delivery. This eliminates on-site assembly of the indirect control components, reducing installation time and eliminating wiring errors.
The SystemReady is designed to work with the majority of modern system boilers — the boiler's integral pump, expansion vessel, and controls manage the primary heating circuit, while the SystemReady cylinder handles DHW storage and delivery. A tapping for a second heating zone (e.g. underfloor heating or a separate radiator zone) is included as standard.
The SystemReady uses the same high-performance coil-in-coil heat exchanger as the standard Megaflo Eco Indirect, achieving recovery of 70% draw-off in 16–27 minutes (at 15 l/min, 80 °C primary flow). Coil ratings of 19.4–20.5 kW at 15 l/min ensure rapid cylinder reheat and excellent simultaneous hot-water performance.
The internal floating-baffle air-gap system accommodates domestic hot water thermal expansion within the cylinder, eliminating the need for an external DHW expansion vessel and keeping the installation footprint compact. The unit's floor depth of 710 mm should be planned for — slightly larger than the standard Eco Indirect due to the pre-fitted control assembly.
Every SystemReady cylinder is fabricated from high-grade duplex stainless steel, 100% pressure-tested to 15 bar. This alloy's superior strength and corrosion resistance underpins Heatrae Sadia's lifetime guarantee on the inner tank for domestic first-owner installations. Performance and insulation levels exceed Building Regulations Part L requirements.
60 mm of CFC/HCFC-free polyurethane foam (GWP = 3.1) with an insulated T&P valve gives excellent standing heat-loss performance. Fed directly from the cold-water mains, all models deliver up to 76 litres per minute at 3 bar and 45 litres per minute at 1 bar — providing powerful simultaneous hot water to multiple outlets without shower pumps or loft tanks.
- Factory pre-mounted & pre-wired indirect control pack: cylinder thermostat · thermal cut-out · wiring centre · 22 mm 2-port motorised valve
- Factory-fitted 3 kW backup immersion heater with manual-reset thermal cut-out
- Cold Water Inlet Control Kit: 3 bar PRV · 8 bar pressure relief valve · ¼-turn isolating valve · line strainer · non-return valve · drain cock
- Factory-fitted T&P relief valve set at 90 °C / 10 bar (BS EN 1490)
- T&P valve insulation kit
- 15/22 mm tundish
- Second zone heating tapping
| Parameter | Value / Specification |
|---|---|
| Inner vessel material | High-grade duplex stainless steel — pressure tested to 15 bar |
| Thermal insulation | 60 mm CFC/HCFC-free fire-retardant polyurethane foam (GWP = 3.1) |
| Operating pressure (DHW) | 0.3 MPa (3 bar) |
| Max mains supply pressure (to PRV) | 1.6 MPa (16 bar) |
| Min recommended supply | 0.15 MPa (1.5 bar) — 20 litres/min |
| Pressure relief valve | 0.8 MPa (8 bar) |
| T&P relief valve | 90 °C / 1 MPa (10 bar) |
| Backup immersion heater | Single 3 kW @ 240 V / 2.8 kW @ 230 V (AC only) |
| DHW connections | 22 mm male compression |
| Thermostat setting (factory) | 60 °C |
| Diameter (all models) | 579 mm (Ø) |
| Min width requirement (all models) | 690 mm |
| Depth / min depth requirement | 710 mm |
| Kiwa certification | No. 1608714 |
| Tank guarantee | Lifetime (inner tank) · 2 years (components) |
| Country of manufacture | United Kingdom |
| Model | 170SB | 210SB | 250SB | 300SB |
|---|---|---|---|---|
| Product code | 95050499 | 95050500 | 95050501 | 95050502 |
| Nominal capacity (L) | 170 | 210 | 250 | 300 |
| ErP class | B | B | C | C |
| Standing loss (W) | 59 | 65 | 70 | 79 |
| Standing heat loss (kWh/24 h) | 1.20 | 1.42 | 1.61 | 1.69 |
| Standing heat loss (kWh/year) | 438 | 518 | 588 | 617 |
| Coil surface area (m²) | 0.79 | 0.79 | 0.79 | 0.79 |
| Coil heat-up time at 15 l/min 80 °C (min) | 22 | 28 | 34 | 39 |
| Recovery 70% draw-off (min) | 16 | 19 | 23 | 27 |
| Coil rating at 15 l/min (kW) | 19.4 | 19.4 | 19.5 | 20.5 |
| Coil rating at 30 l/min (kW) | 25.1 | 25.3 | 24.2 | 25.4 |
| Coil pressure drop at 15 l/min | 0.005 MPa (0.05 bar) | |||
| Coil pressure drop at 30 l/min | 0.018 MPa (0.18 bar) | |||
| Max flow at 3 bar (L/min) | 76 | 76 | 76 | 76 |
| Max flow at 1 bar (L/min) | 45 | 45 | 45 | 45 |
| Weight empty (kg) | 48 | 51 | 57 | 65 |
| Weight full (kg) | 230 | 250 | 293 | 348 |
| Dimension | 170SB | 210SB | 250SB | 300SB |
|---|---|---|---|---|
| A — Primary return | 316 | 316 | 316 | 316 |
| B — Cold inlet | 355 | 355 | 355 | 355 |
| C — Cable entry lower | 310 | 310 | 310 | 310 |
| D — Sensor pocket | 410 | 410 | 410 | 410 |
| E — Secondary return | 934 | 1011 | 1238 | 1526 |
| F — T&P relief valve | 1020 | 1095 | 1323 | 1574 |
| G — Height | 1384 | 1486 | 1738 | 2053 |
| H — Depth | 710 | 710 | 710 | 710 |
| I — Width (Ø) | 579 | 579 | 579 | 579 |
| J — Min width requirement | 690 | 690 | 690 | 690 |
| K — Min depth requirement | 710 | 710 | 710 | 710 |
Original: $2,928.78
-65%$2,928.78
$1,025.07More Images
Heatrae Sadia Megaflo Eco SystemReady Indirect Unvented Hot Water Cylinder – 170SB / 210SB / 250SB / 300SB
The Heatrae Sadia Megaflo Eco SystemReady is the fastest-installing variant of the market-leading Megaflo Eco unvented cylinder range — factory pre-plumbed and pre-wired for direct connection to a system boiler. Available in 170, 210, 250, and 300 litres, every SystemReady cylinder arrives on site with the heating controls, motorised valve, and wiring centre already mounted and connected to the cylinder body — significantly reducing labour time and delivering a consistently neater, more professional installation appearance. Built from high-grade duplex stainless steel with a lifetime inner-tank guarantee, the SystemReady delivers mains-pressure hot water at up to 76 litres per minute with no need for loft tanks, shower pumps, or an external DHW expansion vessel.
Megaflo Eco SystemReady cylinders must be installed and commissioned by a G3 competent person (or equivalent under Scottish / Northern Irish Building Regulations). All electrical connections must be made by a qualified electrician to current IET Wiring Regulations. All installations must be notified to Local Area Building Control. The Benchmark commissioning checklist must be completed and left with the householder.
The Megaflo Eco SystemReady is specifically engineered for use with a system boiler, which has its own integral pump, expansion vessel, and controls. It is not designed for heat-only (regular) boilers — if you are using a heat-only boiler, please see the Megaflo Eco SystemFit range. A tapping for a second heating zone is included as standard for multi-zone system installations.
The Megaflo Eco SystemReady has no internal DHW expansion vessel — domestic hot water expansion is handled by the integral floating-baffle system. However, the primary heating circuit expansion vessel supplied with the unit must be correctly installed in the primary circuit. The safety valves fitted protect the water heater only and do not protect the primary system.
The SystemReady's defining feature is its factory-assembled control pack — the cylinder thermostat, thermal cut-out, 22 mm 2-port motorised valve, and wiring centre are already mounted and wired to the cylinder body before delivery. This eliminates on-site assembly of the indirect control components, reducing installation time and eliminating wiring errors.
The SystemReady is designed to work with the majority of modern system boilers — the boiler's integral pump, expansion vessel, and controls manage the primary heating circuit, while the SystemReady cylinder handles DHW storage and delivery. A tapping for a second heating zone (e.g. underfloor heating or a separate radiator zone) is included as standard.
The SystemReady uses the same high-performance coil-in-coil heat exchanger as the standard Megaflo Eco Indirect, achieving recovery of 70% draw-off in 16–27 minutes (at 15 l/min, 80 °C primary flow). Coil ratings of 19.4–20.5 kW at 15 l/min ensure rapid cylinder reheat and excellent simultaneous hot-water performance.
The internal floating-baffle air-gap system accommodates domestic hot water thermal expansion within the cylinder, eliminating the need for an external DHW expansion vessel and keeping the installation footprint compact. The unit's floor depth of 710 mm should be planned for — slightly larger than the standard Eco Indirect due to the pre-fitted control assembly.
Every SystemReady cylinder is fabricated from high-grade duplex stainless steel, 100% pressure-tested to 15 bar. This alloy's superior strength and corrosion resistance underpins Heatrae Sadia's lifetime guarantee on the inner tank for domestic first-owner installations. Performance and insulation levels exceed Building Regulations Part L requirements.
60 mm of CFC/HCFC-free polyurethane foam (GWP = 3.1) with an insulated T&P valve gives excellent standing heat-loss performance. Fed directly from the cold-water mains, all models deliver up to 76 litres per minute at 3 bar and 45 litres per minute at 1 bar — providing powerful simultaneous hot water to multiple outlets without shower pumps or loft tanks.
- Factory pre-mounted & pre-wired indirect control pack: cylinder thermostat · thermal cut-out · wiring centre · 22 mm 2-port motorised valve
- Factory-fitted 3 kW backup immersion heater with manual-reset thermal cut-out
- Cold Water Inlet Control Kit: 3 bar PRV · 8 bar pressure relief valve · ¼-turn isolating valve · line strainer · non-return valve · drain cock
- Factory-fitted T&P relief valve set at 90 °C / 10 bar (BS EN 1490)
- T&P valve insulation kit
- 15/22 mm tundish
- Second zone heating tapping
| Parameter | Value / Specification |
|---|---|
| Inner vessel material | High-grade duplex stainless steel — pressure tested to 15 bar |
| Thermal insulation | 60 mm CFC/HCFC-free fire-retardant polyurethane foam (GWP = 3.1) |
| Operating pressure (DHW) | 0.3 MPa (3 bar) |
| Max mains supply pressure (to PRV) | 1.6 MPa (16 bar) |
| Min recommended supply | 0.15 MPa (1.5 bar) — 20 litres/min |
| Pressure relief valve | 0.8 MPa (8 bar) |
| T&P relief valve | 90 °C / 1 MPa (10 bar) |
| Backup immersion heater | Single 3 kW @ 240 V / 2.8 kW @ 230 V (AC only) |
| DHW connections | 22 mm male compression |
| Thermostat setting (factory) | 60 °C |
| Diameter (all models) | 579 mm (Ø) |
| Min width requirement (all models) | 690 mm |
| Depth / min depth requirement | 710 mm |
| Kiwa certification | No. 1608714 |
| Tank guarantee | Lifetime (inner tank) · 2 years (components) |
| Country of manufacture | United Kingdom |
| Model | 170SB | 210SB | 250SB | 300SB |
|---|---|---|---|---|
| Product code | 95050499 | 95050500 | 95050501 | 95050502 |
| Nominal capacity (L) | 170 | 210 | 250 | 300 |
| ErP class | B | B | C | C |
| Standing loss (W) | 59 | 65 | 70 | 79 |
| Standing heat loss (kWh/24 h) | 1.20 | 1.42 | 1.61 | 1.69 |
| Standing heat loss (kWh/year) | 438 | 518 | 588 | 617 |
| Coil surface area (m²) | 0.79 | 0.79 | 0.79 | 0.79 |
| Coil heat-up time at 15 l/min 80 °C (min) | 22 | 28 | 34 | 39 |
| Recovery 70% draw-off (min) | 16 | 19 | 23 | 27 |
| Coil rating at 15 l/min (kW) | 19.4 | 19.4 | 19.5 | 20.5 |
| Coil rating at 30 l/min (kW) | 25.1 | 25.3 | 24.2 | 25.4 |
| Coil pressure drop at 15 l/min | 0.005 MPa (0.05 bar) | |||
| Coil pressure drop at 30 l/min | 0.018 MPa (0.18 bar) | |||
| Max flow at 3 bar (L/min) | 76 | 76 | 76 | 76 |
| Max flow at 1 bar (L/min) | 45 | 45 | 45 | 45 |
| Weight empty (kg) | 48 | 51 | 57 | 65 |
| Weight full (kg) | 230 | 250 | 293 | 348 |
| Dimension | 170SB | 210SB | 250SB | 300SB |
|---|---|---|---|---|
| A — Primary return | 316 | 316 | 316 | 316 |
| B — Cold inlet | 355 | 355 | 355 | 355 |
| C — Cable entry lower | 310 | 310 | 310 | 310 |
| D — Sensor pocket | 410 | 410 | 410 | 410 |
| E — Secondary return | 934 | 1011 | 1238 | 1526 |
| F — T&P relief valve | 1020 | 1095 | 1323 | 1574 |
| G — Height | 1384 | 1486 | 1738 | 2053 |
| H — Depth | 710 | 710 | 710 | 710 |
| I — Width (Ø) | 579 | 579 | 579 | 579 |
| J — Min width requirement | 690 | 690 | 690 | 690 |
| K — Min depth requirement | 710 | 710 | 710 | 710 |
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Heatrae Sadia Megaflo Eco SystemReady is the fastest-installing variant of the market-leading Megaflo Eco unvented cylinder range — factory pre-plumbed and pre-wired for direct connection to a system boiler. Available in 170, 210, 250, and 300 litres, every SystemReady cylinder arrives on site with the heating controls, motorised valve, and wiring centre already mounted and connected to the cylinder body — significantly reducing labour time and delivering a consistently neater, more professional installation appearance. Built from high-grade duplex stainless steel with a lifetime inner-tank guarantee, the SystemReady delivers mains-pressure hot water at up to 76 litres per minute with no need for loft tanks, shower pumps, or an external DHW expansion vessel.
Megaflo Eco SystemReady cylinders must be installed and commissioned by a G3 competent person (or equivalent under Scottish / Northern Irish Building Regulations). All electrical connections must be made by a qualified electrician to current IET Wiring Regulations. All installations must be notified to Local Area Building Control. The Benchmark commissioning checklist must be completed and left with the householder.
The Megaflo Eco SystemReady is specifically engineered for use with a system boiler, which has its own integral pump, expansion vessel, and controls. It is not designed for heat-only (regular) boilers — if you are using a heat-only boiler, please see the Megaflo Eco SystemFit range. A tapping for a second heating zone is included as standard for multi-zone system installations.
The Megaflo Eco SystemReady has no internal DHW expansion vessel — domestic hot water expansion is handled by the integral floating-baffle system. However, the primary heating circuit expansion vessel supplied with the unit must be correctly installed in the primary circuit. The safety valves fitted protect the water heater only and do not protect the primary system.
The SystemReady's defining feature is its factory-assembled control pack — the cylinder thermostat, thermal cut-out, 22 mm 2-port motorised valve, and wiring centre are already mounted and wired to the cylinder body before delivery. This eliminates on-site assembly of the indirect control components, reducing installation time and eliminating wiring errors.
The SystemReady is designed to work with the majority of modern system boilers — the boiler's integral pump, expansion vessel, and controls manage the primary heating circuit, while the SystemReady cylinder handles DHW storage and delivery. A tapping for a second heating zone (e.g. underfloor heating or a separate radiator zone) is included as standard.
The SystemReady uses the same high-performance coil-in-coil heat exchanger as the standard Megaflo Eco Indirect, achieving recovery of 70% draw-off in 16–27 minutes (at 15 l/min, 80 °C primary flow). Coil ratings of 19.4–20.5 kW at 15 l/min ensure rapid cylinder reheat and excellent simultaneous hot-water performance.
The internal floating-baffle air-gap system accommodates domestic hot water thermal expansion within the cylinder, eliminating the need for an external DHW expansion vessel and keeping the installation footprint compact. The unit's floor depth of 710 mm should be planned for — slightly larger than the standard Eco Indirect due to the pre-fitted control assembly.
Every SystemReady cylinder is fabricated from high-grade duplex stainless steel, 100% pressure-tested to 15 bar. This alloy's superior strength and corrosion resistance underpins Heatrae Sadia's lifetime guarantee on the inner tank for domestic first-owner installations. Performance and insulation levels exceed Building Regulations Part L requirements.
60 mm of CFC/HCFC-free polyurethane foam (GWP = 3.1) with an insulated T&P valve gives excellent standing heat-loss performance. Fed directly from the cold-water mains, all models deliver up to 76 litres per minute at 3 bar and 45 litres per minute at 1 bar — providing powerful simultaneous hot water to multiple outlets without shower pumps or loft tanks.
- Factory pre-mounted & pre-wired indirect control pack: cylinder thermostat · thermal cut-out · wiring centre · 22 mm 2-port motorised valve
- Factory-fitted 3 kW backup immersion heater with manual-reset thermal cut-out
- Cold Water Inlet Control Kit: 3 bar PRV · 8 bar pressure relief valve · ¼-turn isolating valve · line strainer · non-return valve · drain cock
- Factory-fitted T&P relief valve set at 90 °C / 10 bar (BS EN 1490)
- T&P valve insulation kit
- 15/22 mm tundish
- Second zone heating tapping
| Parameter | Value / Specification |
|---|---|
| Inner vessel material | High-grade duplex stainless steel — pressure tested to 15 bar |
| Thermal insulation | 60 mm CFC/HCFC-free fire-retardant polyurethane foam (GWP = 3.1) |
| Operating pressure (DHW) | 0.3 MPa (3 bar) |
| Max mains supply pressure (to PRV) | 1.6 MPa (16 bar) |
| Min recommended supply | 0.15 MPa (1.5 bar) — 20 litres/min |
| Pressure relief valve | 0.8 MPa (8 bar) |
| T&P relief valve | 90 °C / 1 MPa (10 bar) |
| Backup immersion heater | Single 3 kW @ 240 V / 2.8 kW @ 230 V (AC only) |
| DHW connections | 22 mm male compression |
| Thermostat setting (factory) | 60 °C |
| Diameter (all models) | 579 mm (Ø) |
| Min width requirement (all models) | 690 mm |
| Depth / min depth requirement | 710 mm |
| Kiwa certification | No. 1608714 |
| Tank guarantee | Lifetime (inner tank) · 2 years (components) |
| Country of manufacture | United Kingdom |
| Model | 170SB | 210SB | 250SB | 300SB |
|---|---|---|---|---|
| Product code | 95050499 | 95050500 | 95050501 | 95050502 |
| Nominal capacity (L) | 170 | 210 | 250 | 300 |
| ErP class | B | B | C | C |
| Standing loss (W) | 59 | 65 | 70 | 79 |
| Standing heat loss (kWh/24 h) | 1.20 | 1.42 | 1.61 | 1.69 |
| Standing heat loss (kWh/year) | 438 | 518 | 588 | 617 |
| Coil surface area (m²) | 0.79 | 0.79 | 0.79 | 0.79 |
| Coil heat-up time at 15 l/min 80 °C (min) | 22 | 28 | 34 | 39 |
| Recovery 70% draw-off (min) | 16 | 19 | 23 | 27 |
| Coil rating at 15 l/min (kW) | 19.4 | 19.4 | 19.5 | 20.5 |
| Coil rating at 30 l/min (kW) | 25.1 | 25.3 | 24.2 | 25.4 |
| Coil pressure drop at 15 l/min | 0.005 MPa (0.05 bar) | |||
| Coil pressure drop at 30 l/min | 0.018 MPa (0.18 bar) | |||
| Max flow at 3 bar (L/min) | 76 | 76 | 76 | 76 |
| Max flow at 1 bar (L/min) | 45 | 45 | 45 | 45 |
| Weight empty (kg) | 48 | 51 | 57 | 65 |
| Weight full (kg) | 230 | 250 | 293 | 348 |
| Dimension | 170SB | 210SB | 250SB | 300SB |
|---|---|---|---|---|
| A — Primary return | 316 | 316 | 316 | 316 |
| B — Cold inlet | 355 | 355 | 355 | 355 |
| C — Cable entry lower | 310 | 310 | 310 | 310 |
| D — Sensor pocket | 410 | 410 | 410 | 410 |
| E — Secondary return | 934 | 1011 | 1238 | 1526 |
| F — T&P relief valve | 1020 | 1095 | 1323 | 1574 |
| G — Height | 1384 | 1486 | 1738 | 2053 |
| H — Depth | 710 | 710 | 710 | 710 |
| I — Width (Ø) | 579 | 579 | 579 | 579 |
| J — Min width requirement | 690 | 690 | 690 | 690 |
| K — Min depth requirement | 710 | 710 | 710 | 710 |
