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Process heat to 95 °C
SE-SHT Series

Super high temperature — 95 °C without a boiler

Generates hot water up to 95 °C on low-GWP R515B, from ambient air alone — no waste heat needed and no boiler in the loop. Where an ultra-low-GWP charge is required, R1234ze is available on request.

Sunniva Super High Temperature Heat Pump
Capacity
17.8–102.4kW
4 models, all published
Hot water to
95°C
at the rated condition
COP up to
2.4
at the rated condition
Datasheets
All
published, per model

Is this the right range for you?

Two minutes here saves a wasted quotation. The boundaries below are the published ones, not sales judgement.

Yes, if all of these are true

  • You need process water between 80 and 95 °C
  • Your duty is somewhere between 18 and 102 kW, or a multiple of it
  • You are running a diesel, gas or coal boiler today
  • Refrigerant GWP matters to your reporting

Look at another range if

Applications

Where this range is normally installed.

Textiles
Chemicals
Pharma industry
Food industry
Dairy

Key features

What is inside the cabinet, and why each of them is there.

Water outlet temperature up to 95 °C

Rated at 90 °C, maximum 95 °C. Every figure on this page is taken at the 90 °C rated outlet.

Heating capacity from 17.8 to 102.4 kW

Across the four published models, at 30 °C air and 90 °C water. Larger duties are made by putting machines in parallel.

R515B refrigerant — R1234ze on request

R515B is the standard charge across the range. Where a site's reporting or F-gas position calls for an ultra-low-GWP fluid, we build the same machine on R1234ze to order.

Scroll compressors, air source

One on the 17U and 25U, two on the 100V. The machine takes its heat from ambient air, so it needs nothing warm from your process.

Water flow and high-pressure protection

Smart display controller with MODBUS

Models in this range

Every figure below is taken from that model’s own technical data sheet, at its rated test condition. Full performance at every published ambient is in the PDF.

ModelHeating capacityCOP Hot water outputDimensions (L×W×H)
SE-SHT-17U17.8 kW 2.3255 LPH 860 × 780 × 1780 mm Datasheet ↓
SE-SHT-25U25.4 kW 2.4365 LPH 860 × 780 × 1780 mm Datasheet ↓
SE-SHT-50V51.2 kW 2.3750 LPH 1580 × 780 × 1780 mm Datasheet ↓
SE-SHT-100V102.4 kW 2.31500 LPH 2260 × 1030 × 2170 mm Datasheet ↓

Benefits

What this range does for the building, rather than what is in the box.

Displaces a fuel-fired boiler outright

95 °C is where a great deal of industrial hot water actually sits, and reaching it on a heat pump takes out the flue, the fuel yard and the boiler licence with it.

A large step down in GWP

R515B sits far below the R134a it replaces at this duty, and the R1234ze option takes it lower still. Ask us for the current figures against your reporting standard — they differ between AR4 and AR5.

It only needs air

No waste heat, no warm return, no source loop. If the machine can stand outside, it can run — which is what separates this range from the single-cycle 120 °C machines.

Size your process duty

The industrial calculator sizes the duty in kilowatts and shows what comes off fuel. Set the process temperature above 80 °C and it selects from this range too — asking for your site design air temperature rather than the outlet, because that is the axis these machines are published against.

Built to order

Options on this range, quoted per order. None of them is the standard build and none is included in the model table above — ask at enquiry and have it confirmed on the order acknowledgement.

  • Water connection — Coupling type to suit the site — threaded, flanged or grooved.
  • Casing — Stainless steel or powder-coated finish.
  • Circulation pump — Can be built into the unit instead of being fitted in the plant room.
  • Condenser — Stainless steel or copper, in place of the standard build.

And what every Sunniva heat pump gives you

True of the whole range, not just this one.

  • Up to 75 % off water heating against electric, LPG or PNG
  • Quick payback and strong return on investment
  • The longest product life of any common water-heating technology
  • Silent operation
  • Hot water round the year, independent of sunlight
  • Lower carbon emissions
  • Negligible maintenance cost
  • Saves space against a boiler or a solar-thermal field

Common questions

The ones our engineers are actually asked.

What refrigerant does it run on?
R515B as standard, and R1234ze on request where a site needs an ultra-low-GWP charge. Both sit well below the R134a used at lower temperatures, and at this duty the charge is large enough for the difference to show in your emissions reporting. Ask us for the current GWP figures against your reporting standard — they differ between AR4 and AR5.
Can it make steam?
No — 95 °C hot water. For steam-adjacent duty at 120 °C, see the Ultra High Temperature range.
What if my duty is larger than 102 kW?
Machines run in parallel on a common header, which is how any duty above the largest single model is met. Bring us the duty in kilowatts and the arrangement follows from it. The four models on this page are what is published today; anything else would be a figure without a data sheet behind it, and we do not print those.
Does it derate in winter?
Yes — it takes its heat from ambient air. Published capacity falls from 102.4 kW at 30 °C air to 79.8 kW at 20 °C on the SE-SHT-100V, and the sheets are tested over that band only. Tell us your site design temperature and we will size against it.

Manuals and related ranges

Performance figures are published test data at the stated conditions and are not a guarantee for a specific installation. Draw-off pattern, pipe runs, water quality, static head and local code all affect the final selection — confirm with Sunniva Encon LLP before ordering.

© 2026 Sunniva Encon LLP. The design and code of this page are our copyright. Results are indicative and offered in good faith — the method is set out above. Confirm the final selection with us before ordering.