header tag change in module not applied

If at a custom html module with tab Advanced the header tag is changed to h1, I would expect this to reflect in the html code (page source details) but is does not. It remains at h3 which is apparently default.
See http://www.wind-rose.co.za (English) and look for <h3 class="header"><span>About our Guest House</span></h3>. Picture with module setting is attached.

Hi

Not every module style supports all the options from configuration. Our style is called "gk_style". You can use style override option in template settings to use any of joomla default styles: none, xhtml, rounded, html5, outline, horz, table.

Ok. thanks anyway.

Ok. thanks anyway.

I think You misunderstood me That was a solution to Your questions. In template configuration You can overwrite the style of the module to use. Try changing this module position style to one of those: none, xhtml, rounded, html5, outline, horz, table

I believe one of the styles will have a support for it.

None of the style's proposed fits my needs. I would prefer to use an override in GK template. Can you help me with the code for that?

Hi

Those are all styles available which came with joomla and our template. If none works for You than I'm afraid You will have to make a custom style, be we do not support such customisations, sorry.