High-capacity 200 litre buffer vessel for larger renewable heating installations — the accumulator tank of choice for high-output heat pump and biomass systems. Maximises efficiency by providing substantial thermal storage and hydraulic separation, significantly reducing heat source cycling.
Available from 100L to 500L. Options: SUS304/316 steel, custom connections.
Ensures proper hydraulic separation between heat source and distribution circuits across larger installations, improving efficiency and reducing pump wear.
200L capacity significantly reduces heat source cycling, extending equipment lifespan and delivering consistent heating comfort for medium to large homes.
| Parameter | Value |
|---|---|
| Model | HB-200 |
| Capacity | 200 L |
| Tank material | SUS304 stainless steel |
| Insulation | High-density PU foam |
| Connections | G 1½" circulation ×4 · G ½" sensor ×2 |
| Packing size | 60 × 60 × 158 cm |
| Net weight | 39.5 kg |
| Gross weight | 41.5 kg |
| MOQ | 20ft container (models can be mixed within one container) |
| Lead time | About 30 days from order confirmation and deposit |
| Certifications | ISO 9001:2015 factory · CE marking · ErP energy label |
| Warranty | 1 year from date of purchase |
| Shipping terms | FOB Shanghai |
The HB-200 is the largest vessel in Heatlyt's standard buffer range at 200 litres, and the only one with G 1½" circulation ports and a 60 × 60 cm base. The HB-100 and HB-150 share a narrower 53 × 53 cm footprint and G 1" ports, so those two swap on the same plinth and pipework while the HB-200 does not.
| Model | Capacity | Circulation connections | Packing size | Net weight |
|---|---|---|---|---|
| HB-100 | 100 L | G 1" ×4 | 53 × 53 × 122 cm | 27 kg |
| HB-150 | 150 L | G 1" ×4 | 53 × 53 × 161 cm | 35.5 kg |
| HB-200 (this page) | 200 L | G 1½" ×4 | 60 × 60 × 158 cm | 39.5 kg |
All three carry the same SUS304 body, high-density PU foam insulation and G ½" sensor pockets ×2, and ship on identical commercial terms — 20ft container MOQ, about 30 days lead time, FOB Shanghai. To pick a size from the heat pump's output rather than from the model list, use the buffer tank sizing calculator or the buffer tank sizing guide for heat pump systems.
Heatlyt supplies the HB-200 on a 20ft container minimum order, and models can be mixed within one container — buffer tanks, DHW cylinders and duo tanks together — so distributors can balance stock across the range. Quotes are issued FOB Shanghai, and production takes about 30 days from order confirmation and deposit.
The HB-200 is built in an ISO 9001:2015 certified factory, carries CE marking for the European market, and ships with the ErP energy label shown above. The SUS304 body is joined by argon-shielded welding, the process that keeps a weld seam's corrosion resistance close to that of the parent steel.
The HB-200 ships packed at 60 × 60 × 158 cm, weighing 39.5 kg net and 41.5 kg gross. The dimensional drawing above gives connection positions and heights. Those packed dimensions are the figures container loading plans are built from, so they are the ones to quote when calculating a 20ft container load.
Buffer volume is sized from the heat pump's output and its defrost demand rather than from the floor area of the building — modern air-source units need roughly 2–4 litres of stored water per kW of capacity for a reliable defrost cycle. Heatlyt's buffer tank sizing guide maps that calculation across the HB range.