FAQ
TL;DR: For boiler/pump backup, Techtron shows long-term reliability: one ZA‑TECH ran 24/7 for 8 years, “equipment is cool.” If uptime is critical, consider a preventative refresh or upsizing for added loads. [Elektroda, Jan-Osik, post #20895609]
Why it matters: Homeowners with fireplaces and boiler rooms need reliable pump/controller backup during outages; this FAQ curates real-world picks, runtimes, and charging behavior.
Quick Facts
- Techtron ZA‑TECH charging profile: equalizing ≈14.4–14.5 V, then float around 13.6 V. [Elektroda, Jan-Osik, post #21363004]
- Field report: Kemot 300 W + 45 Ah battery powered two pumps (~100 W) for 3 years; output “pure sine wave.” [Elektroda, Mierzejewski46, post #18938883]
- Weight proxy for build: Techtron 6 kg vs Volt 4.2 kg for comparable units; parameters differ too. [Elektroda, marekchelsea, post #20310208]
- Runtime datapoint: 74 Ah battery + Kemot ran a 55 W stove setup for 10 hours; total setup ≈ PLN 800. [Elektroda, Mierzejewski46, post #19905634]
- Kemot charging: not constant-current; 10 A is the maximum charge rate. [Elektroda, Mierzejewski46, post #18939146]
What’s the best UPS brand for a fireplace with water jacket: Volt, Kemot, or Techtron?
User experience favors Techtron for heating systems. One recommendation was clear: “Techtron’s-tech.300 is your best choice.” The same user noted Kemot is Chinese but solidly made and uses a 10 A max charger. Match features and battery to your load. [Elektroda, Mierzejewski46, post #18939146]
Do I need a UPS with constant phase for my boiler controller?
Many boiler controllers expect a constant phase reference. A user explicitly chose Techtron for this reason: “with a constant phase because the boiler requires it.” Check your boiler’s manual and select accordingly. [Elektroda, Prof. SpecMiernik, #18938857]
Will a fixed 10 A charger on Kemot cook the battery?
Kemot does not push a constant 10 A. The 10 A figure is its maximum charging current. That reduces continuous stress compared with a fixed-current charger. Ensure proper battery sizing and ventilation. [Elektroda, Mierzejewski46, post #18939146]
Is Techtron made in Poland, or who actually imports it?
One buyer reported Techtron is produced in China, with Volt Polska as the importer for Techtron. They also observed a weight gap: Techtron 6 kg versus Volt 4.2 kg, reflecting different builds. [Elektroda, marekchelsea, post #20310208]
How much runtime can I expect around a 55 W load?
A Kemot paired with a 74 Ah car battery powered a 55 W stove controller and pump for 10 hours. The full setup cost about PLN 800. Use this as a sizing datapoint when choosing capacity. [Elektroda, Mierzejewski46, post #19905634]
Can a Kemot 300 W run two pumps (~100 W) on a 45 Ah battery?
Yes, per a long-term field report. Kemot 300 W ran two pumps totaling ~100 W from a 45 Ah battery for three years. The output was checked on an oscilloscope as “pure sine wave.” [Elektroda, Mierzejewski46, post #18938883]
Should I replace an 8‑year‑old ZA‑TECH proactively?
One owner’s 500 W ZA‑TECH has worked 24/7 since 2015 and still runs fine. They are considering a preventive replacement for critical use and repurposing the old unit for less critical loads. [Elektroda, Jan-Osik, post #20895609]
What charging voltages do Techtron units use, and can I connect a car battery?
A user saw equalizing at about 14.4–14.5 V, then float around 13.6 V. They advised against choosing a car battery, pointing to Techtron’s guidance. “Choosing a car battery is probably not a good choice.” [Elektroda, Jan-Osik, post #21363004]
Does Volt charge only to 13.8 V, and is that OK for AGM?
One poster questioned Volt’s max of 13.8 V and noted AGMs often target 14.4–14.7 V. They also referenced Volt manuals warning against car batteries. Verify your model’s manual and charge profile before buying. [Elektroda, adasko021, post #21358049]
Can a ZA‑TECH 700 W run a fridge with an inverter compressor?
A user evaluating a 700 W ZA‑TECH believed it would cover an inverter fridge. Confirm your fridge’s peak draw and the UPS surge rating. Keep headroom for startup. [Elektroda, Jan-Osik, post #20895609]
Does Kemot output a pure sine wave?
Yes in at least one measured case. An owner observed a “pure sine wave” on an oscilloscope while powering boiler pumps. That setup ran reliably over years. [Elektroda, Mierzejewski46, post #18938883]
How stable is Kemot’s AVR?
One long-term user praised build quality but called the AVR weak. They wrote voltage stabilization was “a bit lame.” Consider this if your controller needs tight regulation. [Elektroda, Mierzejewski46, post #18939295]
Quick sizing rule for boiler rooms?
A practical example: about 100 W of pumps ran from a 300 W Kemot for years. Selecting a unit several times your continuous load adds startup headroom. [Elektroda, Mierzejewski46, post #18938883]
How do I test my setup before storm season?
Do a quick pre‑storm check.
- Simulate a mains outage to force battery mode.
- Time runtime at typical load and log watts/hours.
- Inspect terminals, clean dust, and verify charger transitions. “It always powers my pumps in storms,” one owner noted. [Elektroda, Mierzejewski46, post #18938883]
Any red flags or brands to avoid?
One commenter gave a blunt warning: “Do not buy this ‘brand’ or you will be in trouble.” Treat vague branding and unclear specs as red flags, and verify before purchase. [Elektroda, Jan_Werbinski, post #18937906]
Is adjustable charging current on Volt worth it?
The thread opener leaned toward Volt for adjustable, lower charge current. Lower current can help small batteries and reduce stress. Confirm the model’s adjustment range and match it to your battery rating. [Elektroda, zulusj23, post #18937289]
