Heizklar: Making Monthly Heating Transparency a Reality under the Heizkostenverordnung

Since 2022, the Heizkostenverordnung (HeizkV) — Germany's heating cost ordinance — requires that tenants and homeowners receive monthly information about their energy consumption. The idea behind the law is simple:

If consumers can see how much energy they're using in real time, they can adjust behavior, save money, and reduce emissions.

But in practice, the reality still looks very different.

Most households continue to receive their heating consumption reports only once a year, often months late — sometimes long after the billing period has ended. Many residents in Berlin, for example, only find out their 2024 heating costs in late 2025. By then, it's too late to change anything.

That's where Heizklar comes in.

📜 The Heizkostenverordnung (HeizkV) in a Nutshell

The updated HeizkV (December 2021, effective 2022) introduced a crucial change: Any building with remotely readable meters must provide monthly consumption feedback to residents.

This includes:

• Monthly data on heating and hot water usage
• Easy digital access to readings
• Comparisons with previous months and with typical consumption levels

The goal is to increase transparency and energy efficiency in private housing — but implementation has been slow. Why? Because the traditional heating meter ecosystem in Germany is fragmented, proprietary, and outdated.

Companies like A+S GmbH, Techem, ista, and Brunata operate their own systems, formats, and portals. Tenants are left in the dark, waiting for intermediaries to collect, process, and finally send the annual report.

🤖 Heizklar: Bridging the Gap with Agentic AI

Heizklar was born from a simple frustration:

"Why can't I see how much heating I've used this month?"

Our answer: you can — with a little help from AI.

Heizklar is a mobile-first, agentic AI platform that makes heating consumption transparent for everyone, regardless of which meter provider you have.

Here's how it works:

1. Scan your meter with your phone camera
   Our AI recognizes the meter type (A+S, Techem, ista, Brunata — doesn't matter) and reads the digits instantly.
2. Understand your real consumption
   Heizklar translates technical readings into simple, monthly insights — how much you've used, what it will likely cost, and how it compares to previous months.
3. Stay compliant with HeizkV
   For landlords and tenants alike, Heizklar enables the monthly consumption information that the Heizkostenverordnung mandates — even if the legacy provider doesn't deliver it.
4. Act, not react
   With proactive notifications and intelligent insights, Heizklar helps users make timely adjustments — before bills arrive.

🌍 Why This Matters

Germany's housing stock is still largely heated with older systems — gas, oil, or central heating — often controlled by third-party metering companies. This opacity leads to:

• Energy waste (you can't manage what you can't see)
• Surprise Nachzahlungen (unexpected year-end payments)
• Tenant frustration and distrust

Heizklar turns passive tenants into informed participants in the energy transition. We give consumers real-time insight and autonomy — not another opaque report months later.

🧠 What Makes Heizklar Different

Our agentic AI doesn't just read numbers — it understands context. It learns from user feedback, identifies patterns, and can even predict consumption trends to help households optimize their heating behavior.

🚀 The Vision

Heizklar's mission is to make heating transparency universal — no matter what hardware, provider, or billing system you're stuck with.

We believe every tenant in Germany deserves:

• Instant access to their heating consumption
• Simple insights instead of complex reports
• Control over energy costs and sustainability choices

The technology is ready. The regulation is already in place. Now, it's time to bridge the gap between regulation and reality.

💬 Join the Movement

We're building Heizklar for everyone who's ever been surprised by their heating bill. If you'd like to:

• Test early versions of our app
• Share feedback about your heating system
• Or collaborate to make monthly energy transparency real

👉 Visit heizklar.eu and sign up for early access.

Together, we can make "heating transparency" not just a regulation — but a lived reality.