Alternatives · Comparison
Looking for a second German-brand PEX and underfloor-heating source — with no MOQ to start on and a private-label option? Hitze is engineered in Germany, built to German DIN / DVGW standards, and covers the same core lines: PEX, 5-layer multilayer (PEX-AL-PEX) and PE-RT underfloor heating — pipe, manifolds and fittings as one system.
Rehau® is an established PEX and underfloor-heating brand, and if you’re here you already value German-engineered piping. Hitze gives you that same value from an independent German brand — DVGW certified, and open to terms the big brands rarely offer: no MOQ, sample-friendly trials and private label, all backed by a 50-year warranty on the matched Hitze pipe-and-fitting system. Supplied to wholesalers, contractors and private-label brands across North America and Europe.
Trade only — Hitze supplies wholesalers, contractors, distributors and importers, not end-consumers.
DVGW · DIN 4726 · EN ISO 15875The Real Line
Before you compare a spec sheet, see the source. Hitze runs its own extrusion, brass-machining and packing lines and ships a fully-branded PEX, multilayer and underfloor-heating range from stock.






Who & Why
People searching for a Rehau alternative almost never want a downgrade — they want the same German-engineered value on better terms. Three buyers come to this page.
You want a second German-brand source so you’re not single-sourced — with no MOQ, so it never ties up your working capital.
You’ll only switch to an alternative that is genuinely equivalent in material, standard and certification — and that pairs with a manifold that fits.
You want to sell a German-engineered radiant and plumbing range under your own label, with no MOQ so you can launch a market on samples or a small trial order — something the biggest German brands rarely offer.
Hitze is built for all three: an independent German brand, DVGW certified, covering PEX, multilayer and PE-RT underfloor heating, with no MOQ, private label and a complete matching system. Switching supplier shouldn’t mean switching away from German engineering — with Hitze, it doesn’t.
See the German credentials → our German engineering & DVGW certification · Build under your own brand → Private Label / ODM
Comparing other German brands? See our Uponor alternative and Viega alternative.

Objective Comparison
A straight, factual side-by-side. Rehau® is an established PEX and underfloor-heating brand; the cells below describe Rehau in generic, accurate terms and describe Hitze specifically. Detailed Hitze figures are set out in the technical data sheet and Cert Pack, available on request.
| Criterion | Hitze | Rehau® |
|---|---|---|
| Brand origin | German brand, engineered in Germany by our German engineering team | Established German-heritage PEX & underfloor-heating brand |
| PEX pipe | PEX (PEX-a / PEX-b), to EN ISO 15875 / ASTM F876 direction | Established PEX product line |
| Multilayer | 5-layer multilayer PEX-AL-PEX, oxygen-tight aluminium core, EN ISO 21003 direction | Multilayer / composite pipe offering |
| Underfloor heating | PE-RT UFH pipe, EVOH oxygen barrier per DIN 4726, 16 / 20mm, matched manifolds | Established underfloor-heating systems |
| Key certification | DVGW certified; cUPC / NSF-14 / NSF/ANSI 61 / WRAS / CE+DoP direction | Holds recognized industry certifications |
| MOQ | No MOQ — start with samples or a small trial order | Refer to the brand for their terms |
| Private label / ODM | Yes — open to private label under your brand | Refer to the brand for their terms |
| System scope | Pipe + manifold + press / compression / push-fit / brass fittings, one supplier | Full systems offering |
| B2B terms | Flexible, sample-friendly for wholesalers, contractors & brands | Refer to the brand for their terms |
Comparison is on public, factual grounds only — material class, certification families, system scope and B2B terms. The Rehau column is described in generic, accurate terms; we make no claims about their MOQ, pricing or internal conditions. Full material and dimensional data are detailed in the technical data sheet; certificate and listing numbers are provided in the Hitze Cert Pack and are verifiable at source.
One page: material, standard, certification, MOQ, private label and system compatibility, side by side. Business email required.
Why Hitze
Switching away from Rehau® only makes sense if you keep the thing you were paying for — German engineering — and gain terms you couldn’t get before. That’s the Hitze proposition.
Hitze is a German brand, engineered in Germany by our German engineering team and built to German DIN / DVGW standards. You don’t trade down on engineering to switch.
DVGW is the German water and gas authority certification, and it’s the single strongest evidence of German-standard piping. Hitze holds it — certificate and listing numbers are provided in the Hitze Cert Pack and are verifiable at source.
PEX (PEX-a / PEX-b), 5-layer multilayer PEX-AL-PEX with an oxygen-tight aluminium core, and PE-RT underfloor heating with an EVOH oxygen barrier per DIN 4726 — the same core lines you rely on today.
There is no MOQ, so you start with samples or a small trial order without tying up capital, and put your own label on a German-engineered range — terms the biggest brands rarely offer.
Pipe, manifolds and fittings (press / compression / push-fit / brass) coordinated to fit — you sell a system, not a parts list.
North American potable direction (cUPC / NSF-14 / NSF/ANSI 61) and European approvals (DVGW / WRAS / CE+DoP) from one certified range — the paperwork your target market already asks for.
Honest transparency: Hitze is engineered in Germany and manufactured to German standards in our audited facilities, and every line is DVGW / cUPC / NSF / WRAS-directed with verifiable listings. We lead with certification you can check, not origin claims.
German credentials → German Engineering & DVGW · The multilayer line → 5-layer multilayer PEX-AL-PEX pipe
Underfloor Heating
Most people looking for a Rehau® alternative are running — or selling — hydronic underfloor heating, and there the system matters more than the single pipe. Hitze supplies the whole water side.
Hitze supplies PE-RT underfloor-heating pipe with an EVOH oxygen barrier per DIN 4726 (so the boiler, pump and manifold are protected from oxidation corrosion), in 16mm and 20mm, dimensioned to pair cleanly with Hitze brass and stainless-steel underfloor-heating manifolds and the matching fittings.
For a wholesaler that means a coherent shelf. For a contractor it means loops, flow-setters and connections that actually fit each other. For a private-label brand it means you sell a complete German-engineered radiant-floor package under your label — not a bag of mismatched parts.

Your Move
The fastest way to judge an alternative is to hold it. Tell us the line you run today — PEX diameter, multilayer size or underfloor-heating coil — and we’ll send the equivalent Hitze samples plus the certification and spec pack so you can compare material, standard and cert side by side.
A second German-brand source, no MOQ and wholesale pricing. Ask for the current price list — there’s no minimum, so you can start with samples or a small trial order.
Wholesale Supply →Matched pipe + manifold + fittings, DVGW certified, with the spec pack for your inspector. Sample the line before you move a job.
Request Samples →Your label on German-engineered PEX, multilayer and UFH pipe — the full ODM path a finished consumer brand can’t offer.
Private Label / ODM →Prefer to research first? Get the Rehau-vs-Hitze Comparison Sheet for the one-page side-by-side.
FAQ
Rehau® is a trademark of its respective owner. Hitze is an independent manufacturer and is not affiliated with, authorized by, or endorsed by Rehau®. Comparisons on this page are provided for factual, informational purposes only and describe Rehau in general, accurate terms; no Rehau trademarks, logos or product images are used on this page. Hitze product claims describe Hitze products only.
Get Started
Tell us the line you run today — PEX diameter, multilayer size or underfloor-heating coil — and we’ll send the equivalent Hitze samples, the one-page comparison, pricing, MOQ and the certification documents for your region.