Virta HL90E (HL(S)9U1)
From $2,143.00 across 3 verified retailersprice seen 2026-09-01Where to buy
Electrical supply, as published
1-group connectionseparate circuit
| Breaker / fuse size | Not stated by manufacturerThis manufacturer does not publish a breaker size for this model. We will not calculate one — that is the electrician’s determination under your local code. |
|---|---|
| Minimum wire size | 8 AWGAs stated by the manufacturer. Your installation may require more. |
| Current draw | 37.5 A |
| Voltage / phase | 240 V 1 ph |
2-group connectionseparate circuit
| Breaker / fuse size | Not stated by manufacturerThis manufacturer does not publish a breaker size for this model. We will not calculate one — that is the electrician’s determination under your local code. |
|---|---|
| Minimum wire size | 10 AWGAs stated by the manufacturer. Your installation may require more. |
| Current draw | 25 A |
| Voltage / phase | 240 V 1 ph |
Compare all 11 9 kW heaters in the datasetRoom volumes and the electrical figures each manufacturer publishes, side by side.
Size at a glance
Core specifications
| Brand | Harvia |
|---|---|
| Model | Virta HL90E (HL(S)9U1) |
| Series | Virta |
| Rated output | 9 kW, 240 V 1 ph |
| Room volume range | 177–494 ft³ |
| Dimensions | 16 × 13 × 33 in |
| Rock capacity | 110 lb |
| Mounting | floor |
Controls, clearances & certification
| Control type | separate control unit (CX30/CX45 per manual) |
|---|---|
| Control included | Not stated by manufacturerCheck the listing carefully: on several models the control unit is a separate purchase and a significant additional cost. |
| Safety clearances | front/behind/sides 2 in, ceiling 3.5 ft |
| Certifications / listings | Not stated by manufacturer |
| Indoor / outdoor rating | Not stated by manufacturer |
What this manufacturer does not publish
We list these openly because an unpublished specification is itself information — it tells you what to ask the dealer before you buy.
- breakerAmps
- indoorOutdoorRating
- msrp
No source conflict recorded for this model
The sources we consulted for this model agreed with each other. That is not a guarantee the manufacturer’s documents agree everywhere — only that we found no disagreement between the spec page, the manual and the listings we checked. Where we do find one, we publish both values and both sources instead of quietly choosing the more convenient figure.
Transcription notes
SKU: HL9U1UL. Manual publishes alternative 1-group and 2-group connection figures; values are retained separately and not merged.
Where to buy
Prices are what each retailer showed on the date given, not a live feed. Check the retailer’s own page before you buy — it is the only authoritative figure.
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Sources for this page
Transcribed and checked . Manufacturers revise specifications without notice; the document above is authoritative, not this page.