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6.0KW 230V Low Flow Heater C3564-1 240V - Bubbles Supply

6.0KW 230V Low Flow Heater C3564-1

Part #: C3564-1

$429.93
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this heater

The HydroQuip C3564-1 is a 6.0kW, 230V low flow heater assembly designed for spas requiring double barrel replacement heaters. This OEM heater delivers reliable performance for heating your spa water efficiently while operating on standard 230-volt electrical systems. The low flow design makes it suitable for smaller circulation systems and energy-conscious spa operations.

At Bubbles Supply, we guarantee this heater is an exact fit replacement for your original HydroQuip unit, backed by our comprehensive 1-year warranty and same-day shipping commitment. This genuine OEM part ensures optimal compatibility and long-lasting performance compared to aftermarket alternatives. Professional installation is recommended due to electrical and plumbing connections - always verify your spa's electrical specifications and flow requirements match this heater's 6kW, 230V configuration before installation.

Exact part number

C3564-1

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Also known as / Replaces

This part replaces or is interchangeable with:

  • C3564-1 heater element
  • HydroQuip double barrel heater
  • low flow spa heater assembly

Looking for an older part number? Check our supersession lookup tool

Technical specifications

Voltage
230V

Common symptoms this part fixes

If your spa is showing any of these signs, this part is likely your fix:

  • Spa water not heating
  • HH or OH error code on spa pack display
  • Heater trips breaker repeatedly
  • Spa reaches set temperature slowly or not at all
  • Burnt or corroded heater element on inspection

Not sure if this is your problem? Try our diagnostic centre or .

Before you buy — quick checklist

  • Confirm your spa pack is HydroQuip and currently uses a double barrel heater configuration
  • Verify your spa runs on 230V — do not install on a 115V system
  • Check that your circulation system is a low-flow design; this heater is not suited for high-flow pump setups
  • Inspect existing heater housing for corrosion or cracking — replace housing if damaged before installing new element
  • Match the kW rating: your spa pack must be configured to support a 6.0kW load

Reading the checklist now prevents 90% of returns. Worth the 60 seconds.

Install difficulty: Medium — Some experience neededTypically 45–90 minutes

Warranty

1 year manufacturer warranty against defects

Covers manufacturing defects. Does not cover improper installation, normal wear, or accidental damage.

Warranty claims: warranty@bubblessupply.com

Perfect Fit Guarantee

Ordered with our help and the part doesn't fit? Contact us before installation. We'll resolve it with an exchange, replacement recommendation, or return approval.

Learn about our Perfect Fit Guarantee →

Shipping

We ship across the US and Canada. US orders ship from our US warehouse to US customers; Canadian orders ship from our Canadian warehouse to Canadian customers — no cross-border shipping, no surprise duties. In-stock orders placed before 3pm CT ship same day. Standard shipping $9.95 flat rate. Free shipping on orders over $200. Express options available at checkout.

Returns

30-day hassle-free returns on unused parts in original packaging. Contact us before returning to receive your RMA number.

Frequently asked questions

Check the Compatibility section above to confirm fitment for your spa brand and model. If your model is not listed, use our fitment selector at /pages/find-my-part or ask our parts AI for a personalized recommendation.

In-stock orders placed before 3pm CT ship the same day. You will receive tracking information by email as soon as your order ships.

We accept returns within 30 days of delivery for unused items in original packaging. Email returns@bubblessupply.com with your order number to start a return. Installed electrical parts cannot be returned for safety reasons.

Yes, all new parts come with a 1-year warranty against manufacturing defects. Warranty does not cover damage from improper installation or normal wear and tear.

Customer reviews

AI Fitment Assistant

Tell us your spa model and we will confirm this part fits before you buy.

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