🔥 Why choose an caldera de electrodos?
No se requiere chimenea ni sistema de escape
Compact — fits even en small utility spaces
Clean y odor-free
— no soot, no ash
Great para homes, garages,
workshops, car washes
Works perfectly con regular tap water
(up to 200 μS/cm conductivity) — no need for expensive fluids or additives
Ideal for use con solar panels
🔥 How to choose an caldera de electrodos y not make a mistake?
⚙️ An electric caldera is el heart de your calefacción system.
But how do you know which one is right para your home, flat o business?
⚡ Single phase o three phase?
📏 What capacity?
🎛️ What kind de Control is it con?
💧 What does it work con - underfloor calefacción, radiators, solar panels?
This guide will help you understand everything step-by-step, con examples, diagrams y hints.
No confusion - just clear answers y straightforward advice.
🔌 Step One: What type de electrical connection do you have en home?
To choose the right caldera de electrodos, first determine what kind of power supply your home has.
What is the voltage in your home❓
230V
400V
🧩 All caldera models by voltage y potencia range
Before choosing a caldera model, it's useful a estimate how much calefacción potencia your space needs.
🏠 As a general rule: one kilowatt (1 kW) de caldera potencia covers about fifteen square meters (15 m²) de moderately insulated space, which is typically sufficient para most European climates.
📏 Example:
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45 m² → approx. 3 kW
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90 m² → approx. 6 kW
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150 m² → approx. 10 kW
This helps match el caldera’s potencia a your actual calefacción needs
You can now use el chart below a find el right caldera based en your available voltage y estimated potencia.
el diagram below shows all available GAZDA y GALAN caldera models categorized by potencia supply.
➖ Dotted lines represent calderas that, while designed para trifásica connection, can also be used con monofásica setups — typically up a 9 kW.
Technically, any caldera de electrodos trifásica can be connected a a 230 V supply. However, en practice this is only done con models up a 9 kW, because higher-potencia units often exceed el limits de monofásica electrical infrastructure.
y by el way, flexibility works both ways. Just like you can connect some trifásica calderas a a monofásica system (up a 9 kW), you can also connect three monofásica calderas a a trifásica network. This allows you a distribute el load evenly across all phases — no need a boost el neutral wire. Since el phases never hit peak load en el same time. This setup is often used en cascade o parallel hydraulic connections.
🎛️ Step Two: What kind de Control do you prefer?
Standard controlador
water temperatura
Programmable controlador
water temperatura
Standard controlador
air temperatura
Programmable controlador
air temperatura
Standard controlador – water temperatura
🔧 Adjusts calefacción based en water temperatura en el calefacción system.
✅ Turns el caldera en y off based en el user-set temperatura de el calefacción fluid.
📦 Example product en our website:
el comfort y efficiency de your calefacción system depend en el type de termostato you use. Here are el main options.
🧊 Basic controllers (non-Wi-Fi):
💬 We used a install those TP-16 controllers — but you know what? We completely switched a el GAZDA G105. y here's why — it’s just got way more pros.
First — it has one simple calefacción mode. None de that "cooling" mode o “intrval” mode. Honestly, that makes a huge difference! Second — you can easily connect an air termostato a el G105, y it just works. No issues.
con el TP-16, we were constantly getting calls: “It’s not calefacción”, “It’s broken”, seriously... y turns out, el person just accidentally switched it a cooling mode o “window” mode, y el caldera wouldn’t turn en. So there we were, explaining over el Teléfono para half an hour how a switch it back. It got old real quick.
So yeah — we moved a el GAZDA G105, y guess what? It’s been ages, y not a single call like that. It’s simple, clear, works like it should. Everyone’s happier — us y el clients!
Programmable controlador – water temperatura
📅 Lets you schedule calefacción during el day o week based en water temperatura.
✅ Good para homes con predictable routines.
📦 Example product:
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💬 I wanted to say a few words about the TP16H too. This is our weekly termostato, unlike the styard one. I still keep these around, even have a couple lying in storage.
What can I say - it's basically a decent regulator, works as it should. Controls water temperature sin any special complications. There are tons of similar models on the market now, nothing extraordinary, but it's a reliable piece of equipment.
We worked con it for a long time sin any significant issues. The most important thing - you can program it for a whole week ahead, which some customers really appreciate.
By the way, we even put together a tutorial for it - both video y proper instructions. If you follow the link I posted just above, you'll see everything for yourself. It shows all the details: how to set it up y how to program it. Nothing complicated, really, you just need to figure it out once.
In short, it's a styard termostato, nothing fancy, but it gets the job done. If you need weekly programming - this is just the thing!
💬 About KROS 110 y KROS 325 thermostats:
Let me tell you something else — KROS 110 y KROS 325 thermostats are something special. Technically, they fall under el “programmable water temperatura” category, but en reality — they’re en a whole different level.
Their main feature isn’t just scheduling — it’s that they actually Control el potencia level de el caldera de electrodos itself. That’s super rare when we talk about thermostats para calderas! You manually set how much potencia el caldera should run en — which lets you adapt el system a any kind de water. Too much mineral content? Just reduce el potencia — y everything runs smooth.
Yes, de course, they can also run en a schedule — day, night, weekends, whatever you need. But el real value is en that fine-tuned Control, not just basic en/off switching.
If you’ve got an caldera de electrodos — these thermostats are a perfect match.
Oh, y don’t forget el monofásica GAZDA GM 106 caldera. It already has a built-en controlador based en el KROS system — so it comes ready con integrated potencia Control. Basically, it’s a monoblock: caldera y controlador en one compact unit. Super convenient, especially if you want minimal wiring y maximum efficiency.
Standard controlador – air temperatura
🌡️ Measures y controls temperatura en el room.
✅ Maintains room temperatura based en el value set by el user.
📦 Example product:
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💬 Let me tell ya about those bimetallic air termostatos real quick. These are like the simplest regulators you'll find - total basics!
So how they work - you just set your air temp, y inside there's these two metal plates made of different metals. When they heat up, they either connect or disconnect from each other, y that's the whole principle behind it. That's where the name "bimetallic" comes from, obviously.
Let's say you set it to 22°C, y it's got about a 1°C differential by default. So what happens? It'll switch off at 22° y then kick back on when it drops to 21°. Super simple stuff!
To be honest, we hardly ever used these ourselves. But hey, if someone needs a dead-simple solution that just works sin any bells y whistles, they're perfectly fine. Nothing fancy, just old-school reliable tech that's been around forever.
Cheap too, compared to all those digital models. Sometimes you just don't need all those extra features, you know? Just something that turns your heat on y off sin having to think about it!
Programmable controlador – air temperatura
📆 Full scheduling by air temperatura en el room.
✅ Great para switching between day/night comfort levels.
📦 Example product:
Computherm Q7
💬 So the next one we've got is the Computherm Q7 termostato. It's basically just a regular air temperature regulator that runs on two batteries, I think. It was manufactured in Hungary for many years, y we used it too - installed it in parallel con the TP16 water termostato y con others as well.
Can't really say anything bad about this one either. Just a styard regulator con a nice big LCD display, which is actually pretty pleasant to use. Again, there are countless regulators like this around the world, especially con China pumping them out like nobody's business.
We found it reliable enough for everyday use. The large display makes it easy for customers to read the settings, which is always a plus, especially for older folks. Nothing fancy about it - just does what it's supposed to do sin any fuss.
So yeah, pretty basic stuff, but sometimes that's exactly what you need - something straightforward that just works!
📡 Wi-Fi controllers
Both air-based y water-based Wi-Fi thermostats can be integrated into a smart home system — no difference en functionality here. el only distinction is how they measure temperatura:
Wi-Fi termostato – air temperatura
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🌬️ Measures y regulates el temperatura inside your room. This is el classic approach — controlling comfort based en what you feel.
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Wi-Fi termostato – water temperatura
💧 Measures y regulates el temperatura de el calefacción fluid inside your system. Indirectly affects room temperatura, but gives precise Control over caldera operation.
📲 Both types work via mobile apps, offer scheduling y remote Control, y are totalmente compatible con all GAZDA y GALAN calderas — especially effective when used con solar panels o smart energy setups.
Wi-Fi termostato – air temperatura
🌬️ Measures y regulates el temperatura inside your room — el classic y most intuitive way a Control comfort.
🧰 Example: These are typical Wi-Fi thermostats that regulate air temperatura. el market is full de such models, so this is just one example.
💬 Back en 2022 — especially before autumn — we actively installed Wi-Fi thermostats that controlled el caldera based en air temperatura en el room. en el time, it was a real trend — even older generations were getting interested en managing their calefacción from a smartphone, setting schedules, checking temperatures, y so en.
We’ve added a few models a our site just as examples — ones we actually used. These days, we no longer install o recommend these thermostats, but para reference, that’s what we were working con back then.
We picked a couple de options that seemed reliable y easy a use — they’re shown en el photos below. We installed them more than once, y they did their job.
That said, no system is perfect. These thermostats come con their quirks. First — accuracy. They only respond a el air temperatura en el room where they’re installed, not el whole house. So one room might be warm, another too cold — it’s not always ideal.
Second — connectivity. These systems have two parts: a base unit y a display unit. They communicate over radio, y that signal can get spotty, especially con thick walls. There are versions con wired connections between base y display, but that means running cables — not always convenient.
That’s why, en some cases, we installed them together con a water-based termostato, en a sequential setup. el water termostato is set a 70 °C a prevent overheating, while el Wi-Fi air unit manages comfort — say, a keep el room en 22 °C. el result is a safer y more precise Sistema de Control.
Wi-Fi termostato – water temperatura
💧 Measures y regulates el temperatura de el calefacción fluid inside your system. These thermostats allow para more precise caldera Control, since they directly reflect y manage el actual temperatura de el calefacción medium — not just el surrounding air.
🧰 Example: Konlen Wi-Fi controllers give you full Control over system behavior, especially useful when tuning para managing caldera performance more accurately.
💬 About Konlen thermostats (orange KL-WF-96D y blue KL-T-2T):
When el Konlen KL-WF-96D (el orange one) first appeared, I literally jumped out de my chair. Finally! I bought it right away en AliExpress, made a video guide, y posted it en el site. People really appreciated it — clear, convenient, Wi-Fi-controlled, y working based en calefacción fluid temperatura.
But as usual con el Chinese manufacturers — it was almost perfect. el biggest drawback de el KL-WF-96D was its size. It technically mounts en a DIN rail, but it didn't fit into standard plastic enclosures — too tall y not deep enough. I had a trim el plastic, adjust mounts, add bolts — anyone who’s dealt con it will understand. en el Konlen termostato page, there’s still a section en el bottom con all el tricky installation details para el orange KL-WF-96D. That info will come en handy if you decide a go con that model.
Then en January 2024, el KL-T-2T — el blue Konlen — came out, y honestly, I fell en love. el mounting is perfect: two DIN modules, fits like a glove. el app interface got better, el old schedule bugs disappeared, y everything just works as it should.
y el precision — 0.1 °C. By comparison, el older KL-WF-96D had 0.5 °C. Maybe that level de accuracy is overkill para water, but it actually made me think: why not try using it para air temperatura as well? I mentioned this en el video I made para it. I haven’t tested it that way yet, but honestly — con that kind de accuracy, it could work really well en that role too.
💡 y what makes any Wi-Fi termostato truly powerful — air o water-based — is its ability a integrate into a smart ecosystem. Platforms like Tuya o Smart Life let you connect y Control multiple devices from one app. If you already use one de these platforms, you can easily add a Konlen Wi-Fi termostato a your existing setup — no need a create a new ecosystem.
You can start con something simple — like our caldera paired con a Konlen Wi-Fi termostato — y later expand your system con:
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smart floor calefacción controls,
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solar panel management,
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o other Wi-Fi-enabled smart devices.
This creates a unified smart home experience, where calefacción, energy, y comfort all work together automatically.